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Unix Commands/Scripts - 129 Commands/Scripts found

 Sample 1. Maven Clean install without executing tests

mvn clean install -DskipTests

   Like      Feedback     maven  maven clean install  maven install  maven install without test  maven build


 Sample 2. Finding any of the multiple texts strings in file

egrep 'Error|Exception|Debug' logfile.txt

   Like      Feedback     egrep   grep log  grep


 Sample 3. Tail log to see only lines containing an error / exception in last 5000 lines

tail -5000 /opt/WebSphere6/AppServer/profiles/Viva/logs/VivaWebClusterMemberPsc9800/SystemOut.log | grep -i "FileNotFoundException"

   Like      Feedback     tail  tail logs  check logs for errors  grep  grep -i  grep ignore case


 Sample 4. Check Docker Images

docker images

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 Sample 5. Do a maven clean install without tests and only display Error lines

mvn clean install -DskipTests | grep "ERROR"

   Like      Feedback     maven  maven install  maven build  maven clean install


 Sample 6. Count a particular word ( error ) in a file

grep -c "Error" logfile.txt

   Like      Feedback     grep   grep log  grep -c


 Sample 7. Get lines containing any of the multiple errors / exceptions in running logs

tail -f /opt/WebSphere/AppServer/profiles/application/logs/SystemOut.log | egrep "(WSWS3713E|WSWS3734W|WSVR0605W|javax.net.ssl.SSLHandshakeException|ThreadMonitor)"

   Like      Feedback     grep  grep logs  tail  tail -f  egrep


 Sample 8. How to connect to Redis

redis-cli -c -h <REDIS_END_POINT>  -p <PORT_NUMBER>

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 Sample 9. count number of error / exception occurences in a file.

sed -n '/ERROR/,/EST/p' /opt/WebSphere/AppServer/profiles/application/logs/SystemOut.log | grep "LogicBlockSetupException" | wc -l

   Like      Feedback     sed  grep  word count  wc  wc -l


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 Sample 10. Command to package maven project

mvn --package

   Like      Feedback     maven


 Sample 11. Get few lines before and after a particular dependency within mvn depedency tree ( 3 lines before and 1 line after )

mvn dependency:tree | grep -B 3 -A 1 log4j-slf4j

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 Sample 12. Get Current Date

date

   Like      Feedback     get current date   check date in unix


 Sample 13. Git - your branch is ahead by 1 commit error. Move Head to previous commit ( Will reset the last change )

git reset --hard HEAD~

   Like      Feedback     git


 Sample 14. Finding relevant word and excluding irrelevant word

grep xception logfile.txt | grep -v ERROR

   Like      Feedback     grep   grep log  grep -v


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 Sample 15. Finding text within .gz (zipped) file without unzipping them

zgrep -i Error *.gz

   Like      Feedback     grep  zgrep  zgrep -i  grep within zipped file


 Sample 16. find occurences of a particular error in last n days

find /opt/WebSphere/AppServer/profiles/application/logs/ -iname "SystemOut*" -mtime -7 -exec zgrep "FileNotFoundException" {} ; >> logAnalysis.txt

   Like      Feedback     find  zgrep  -iname  0mtime  >>


 Sample 17. Shell Script for Log4j Log Analysis and exception reporting

#!/bin/ksh

EMAIL_SUBJECT="Exceptions-Log"
EMAIL_TO="xyz@yahoo.com"
`grep "xception" Out.log >> /home/xyz/test1`
`cat /home/xyz/test1 | sed -n 's/.* ([^ ]*xception[^ ]*) .*/1/p' | awk '!x[$0]++' >> /home/xyz/test2`

`rm test3`

while read line
do
lineNum=`sed -n "/$line/,/EST/{=;q;}" Out.log`
let bl=$lineNum-5
let el=$lineNum+15
echo "*************************************************
$line
**************************************************

" >> test3
`sed -n "$bl,$el p" Out.log >> test3`
echo "


" >> test3
done < "/home/xyz/test2"

`cat test3 | /bin/mail -s $EMAIL_SUBJECT $EMAIL_TO`

   Like      Feedback     script  exception reporting script  log4j analysis script  awk


 Sample 18. Log Monitoring Shell Script - email upon errors

#!/bin/ksh
# Set the config variables

# *************************************************Configuration********************************************************
logFileName="Out.log"
errorList="WSWS3713E|WSWS3734W|WSVR0605W|javax.net.ssl.SSLHandshakeException|ThreadMonitor"
EMAIL_SUBJECT="Application ERROR"
EMAIL_TO="viva@viva.com"
# **********************************************************************************************************************

logFilepath=""

# Set the Log File path

if [ `hostname` = cpc2600 ]
then
logFilePath="/opt/WebSphere6/AppServer/profiles/applicationcpc2600/logs/"
elif [ `hostname` = cpc2601 ]
then
logFilePath="/opt/WebSphere6/AppServer/profiles/applicationcpc2600/logs "
elif [ `hostname` = psc2800 ]
then
logFilePath="/opt/WebSphere6/AppServer/profiles/applicationpsc2800/logs "
elif [ `hostname` = psc2801 ]
then
logFilePath="/opt/WebSphere6/AppServer/profiles/applicationpsc2801/logs "
fi

if [ ! -s $logFilePath/$logFileName ]; then echo "ERROR- Log File Not Found , Please set the config properly"
exit
fi

# Get the first 30 characters of the first line linestart=$(awk 'NR>1{exit} ;1' $logFilePath/$logFileName | cut -c1-30)

lineend=""

# Never ending loop that will parse the Out.log file every 5 sec

while true ; do

# get the last line of file , till which we need to parse the log in this iteration lineend=$(awk 'END{print}'
$logFilePath/$logFileName | cut -c1-30)

# if log file not found , Do nothing and wait for the next iteration if [ ! -s $logFilePath/$logFileName ];
then echo "Log File Not Found .. Waiting for the next iteration ..."
fi

# error checking , in case we dont find the linestart , parse the whole file grep "$linestart"
$logFilePath/$logFileName if [ $? != 0 ] then
echo "cat $logFilePath/$logFileName | egrep $errorList | /usr/sbin/sendmail -s $EMAIL_SUBJECT $EMAIL_TO"
cat $logFilePath/$logFileName | egrep "$errorList" | /usr/sbin/sendmail -s $EMAIL_SUBJECT $EMAIL_TO

else

#parse the log file from linestart to lineend for errors

echo 'awk "/$linestart/,/$lineend/" $logFilePath/$logFileName | egrep "$errorList" | /usr/sbin/sendmail -s $EMAIL_SUBJECT $EMAIL_TO'

awk "/$linestart/,/$lineend/" $logFilePath/$logFileName | egrep "$errorList" | /usr/sbin/sendmail -s $EMAIL_SUBJECT $EMAIL_TO #set the last line as the first line for next iteration linestart=$lineend fi

#set the last line as the first line for next iteration linestart=$lineend

sleep 5

done

   Like      Feedback     script  shell script to report errors in logs


 Sample 19. Get all Errors in a log file for last n days in a seperate error file

find /LogFilesfolder/ -iname "SystemOut*" -mtime -7 -exec zgrep "| ERROR |" {} ; >> logReport.txt

   Like      Feedback     find  -iname  -mtime  zgrep  find errors in log file


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 Sample 20. Switch Java version in Ubuntu

sudo update-alternatives --config java

   Like      Feedback     switch java version   sudo update-alternatives


 Sample 21. Clone a repository / checkout project in Git

git clone <repository_url>

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 Sample 22. How to reload .bash_profile in ubuntu

source ~/.bash_profile

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 Sample 23. Install AWS CLI on Linux / ubuntu

sudo apt-get install awscli

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 Sample 24. Run df command ( check disk space usage ) using AWS CLI on AWS EC2 instance

Usage -

aws ssm send-command --document-name "AWS-RunPowerShellScript" --parameters commands=["df -a"] --targets "Key=instanceids,Values=<instanceId>"

Example -

aws ssm send-command --document-name "AWS-RunPowerShellScript" --parameters commands=["df -a"] --targets "Key=instanceids,Values= i-0981d8456ffd18wcb"

   Like      Feedback     aws cli  aws ssm  aws ssm send-command  check disk space usage on AWS instanc


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 Sample 25. Get a list of files within AWS S3 bucket

aws s3 ls s3://<bucketName>

Example -

aws s3 ls s3://myBucket/bucket

   Like      Feedback     aws s3  aws storage  amazon cloud storage  amazon s3  list files within aws s3  aws storage  amazon cloud storage  amazon s3


 Sample 26. Get Summary / List of files recursively from an S3 bucket

aws s3 ls s3://mybucket --recursive --human-readable --summarize

   Like      Feedback     amazon aws s3  aws storage  amazon cloud storage  amazon s3


 Sample 27. Download S3 public file

wget <S3 URL>

   Like      Feedback     Download s3 file  s3 file  amazon s3


 Sample 28. Get Elastic Beanstalk / EC2 instance information using instance name

aws ec2 describe-instances --output text --filters "Name=tag:Name,Values=<ELASTIC_BEANSTALK_INSTANCE_NAME>"

   Like      Feedback     AWS  Amazon AWS  AWS CLI  describe-instances  Amazon EC2


 Sample 29. Get List of AWS Configuration

aws configure list

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 Sample 30. Get RDS EndPoints

aws rds describe-db-instances --query 'DBInstances[?DBInstanceIdentifier==`<RDS_IDENTIFIER>`].{endpoint:Endpoint.Address}' --output text

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 Sample 31. Start an EC2 instance using AWS CLI

aws ec2 start-instances --instance-id=<EC2_INSTANCE_ID>

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 Sample 32. Build angular project

 ng build

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 Sample 33. Commands and Steps for resolving Merge conflict in Git

git fetch ( it will only bring the remote code to local but won't attempt to merge )
git status ( will show the merge conflicts )
Fix the Merge conflicts
git add .
git commit
git push

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 Sample 34. Display the file names that matches the given pattern

grep -l ERROR *.log

   Like      Feedback     grep


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 Sample 35. Get Error Snippets in running logs

tail -f /opt/WebSphere/AppServer/profiles/application/logs/SystemOut.log | sed -n '/ERROR/,/EST/p'

   Like      Feedback     grep  grep logs  tail  tail -f  sed  sed -n


 Sample 36. Report the file size of all files bigger than 2 mb and older than 30 days

find . -type f -size +4096 -atime +30 -exec du -sk '{}' ;

   Like      Feedback     find   du   -exec  find files


 Sample 37. Shell Scripts for Automating System Monitoring Task

#!/bin/ksh

errorSnippet=''

# ********************************************************Configuration***************************************************************
homeBench='90'
VivaBench='90'
rootBench='90'
appHomeBench='90'
idleBench='95'
logsOldBench='15'
memUsageBench='2500'
avgLoadBench='5'
EMAIL_SUBJECT="Server Health Check Report for $(hostname)"
EMAIL_TO="test@test.com"
# ************************************************************************************************************************************

dfHome=`df | sed -n '/ /home$/s/.* ([0-9][0-9]*)%.*/1/p'`
dfViva=`df | sed -n '/ /apphome/Viva$/s/.* ([0-9][0-9]*)%.*/1/p'`
dfRoot=`df | sed -n '/ /$/s/.* ([0-9][0-9]*)%.*/1/p'`
dfApphome=`df | sed -n '/ /apphome$/s/.* ([0-9][0-9]*)%.*/1/p'`
dfLogsOld=`df | sed -n '/ /localvg-logsOld$/s/.* ([0-9][0-9]*)%.*/1/p'`
memUsage=`sar -q 1 | tail -1 | awk '{ print "" $3}' | sed 's/%//g'`
avgLoad=`uptime | awk -F "$FTEXT" '{ print $2 }' | cut -d, -f3`
iostatIdle=`iostat | awk '{print $5}' | awk 'NR==4' | cut -d '.' -f1`

if [[ $dfHome -gt $homeBench ]] then
errorSnippet="Disk Usage for /home exceedeed the benchmark, Its $dfHome now";
fi
if [[ $dfViva -gt $VivaBench ]] then
errorSnippet="$errorSnippet
Disk Usage for /apphome/Viva exceedeed the benchmark, Its $dfViva now";
fi
if [[ $dfRoot -gt $rootBench ]] then
errorSnippet="$errorSnippet
Disk Usage for /(root) exceedeed the benchmark, Its $dfRoot now";
fi
if [[ $dfRoot -gt $rootBench ]] then
errorSnippet="$errorSnippet
Disk Usage for /(root) exceedeed the benchmark, Its $dfRoot now";
fi
if [[ $dfApphome -gt $appHomeBench ]] then
errorSnippet="$errorSnippet
Disk Usage for /apphome exceedeed the benchmark, Its $dfApphome now";
fi
if [[ $dfLogsOld -gt $logsOldBench ]] then
errorSnippet="$errorSnippet
Disk Usage for logs old exceedeed the benchmark, Its $dfLogsOld now";
fi
if [[ $iostatIdle -gt $idleBench ]] then
errorSnippet="$errorSnippet
Iostat idle exceedeed the benchmark, Its $iostatIdle now";
fi
if [[ $memUsage -gt $memUsageBench ]] then
errorSnippet="$errorSnippet
Memory Usage exceedeed the benchmark, Its $memUsage now";
fi
if [[ $avgLoad -gt $avgLoadBench ]] then
errorSnippet="$errorSnippet
15 minute Average Load exceedeed the benchmark, Its $avgLoad now";
fi

print $errorSnippet
if [ "$errorSnippet" != "" ]; then
`echo errorSnippet | /bin/mail -s $EMAIL_SUBJECT $EMAIL_TO`
fi

   Like      Feedback     script to automate monitoring task  df  sed  sar  tail  awk  iostat  shell script if block  print  /bin/mail


 Sample 38. Print last field using awk

awk { print $NF }

   Like      Feedback     awk


 Sample 39. Count words in a File

grep "Text" file.txt | wc -l

   Like      Feedback     count words in a file  grep  wc  word count


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 Sample 40. Count number of lines in a file

wc -l 

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 Sample 41. Find text within files of a directory recursively

grep -R "<text>"

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 Sample 42. Start Zookeeper

Go to Kafka home directory and execute

bin/zookeeper-server-start.sh config/zookeeper.properties

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 Sample 43. Install ruby on ubuntu

sudo apt-get install ruby-full

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 Sample 44. Writes a single data record into an Amazon Kinesis stream

aws kinesis put-record --stream-name <STREAM_NAME> --partition-key <PARTITION_KEY> --data <DATA>

   Like      Feedback     Amazon AWS  AWS  Amazon Kinesis Stream  aws kinesis put-record  aws kinesis   put single record in amazon Kinesis


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 Sample 45. Get all Tag information for EC2 instance using instance name

aws ec2 describe-instances --output text --filters "Name=tag:Name,Values=<ELASTIC_BEANSTALK_INSTANCE_NAME>" | grep "TAGS"

   Like      Feedback     AWS  Amazon AWS  AWS CLI  describe-instances  Amazon EC2


 Sample 46. SSH into EC2 instance using pem ( key ) file

ssh -I <KEY_FILE_NAME> <USER_NAME>@<PUBLIC_IP>

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 Sample 47. Moving file from staging to head

git commit <file_name>

   Like      Feedback     git


 Sample 48. Merge a branch to current branch

git merge <branch_to_be_merged>

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 Sample 49. Build Docker Image

docker build <FILE_OR_FOLDER>

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 Sample 50. Run a Docker image on a container

docker run -p <PORT1>:<PORT2> <CONTAINER_ID> <IMAGE_ID>

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 Sample 51. Shell Script to continuously monitor the state(up/down) of application and send email if its down

while true ; do
curl websiteaddress.com | grep -q "Down for Maintenance"
if [ $? -eq 0 ] ; then
echo "Website is Down" | mail -s "Website is down for maintenance" email@address.com
; fi
sleep 20
done

   Like      Feedback     script to monitor logs  curl  sleep  while loop  if block


 Sample 52. Grant most liberal permissions on the file or directory for all ( self , group and others )

chmod 777 file_name

   Like      Feedback     chmod  change permission   change permission on file  grant most liberal permission  grant most lenient permissions


 Sample 53. Check the Dependency Tree of a maven project

mvn dependency:tree

   Like      Feedback     maven  maven dependency  maven dependency tree


 Sample 54. Get the Maven Dependency Tree of a project in a separate file

mvn dependency:tree >> file.txt

   Like      Feedback     maven  maven dependency  maven dependency tree


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 Sample 55. Get fields matching a particular string using awk

awk '/xception/ { print $1 }' source.txt >> destination.txt

   Like      Feedback     awk


 Sample 56. How to display hidden files in unix
Ashish Singh
ashishde89@gmail.com
ls -a

   Like      Feedback     display hidden files   listing all files   ls


 Sample 57. Get Maven Dependency using command line get

mvn dependency:get -Dartifact=org.springframework:spring-context:5.0.0.BUILD-SNAPSHOT

i.e

mvn dependency:get -Dartifact=<group Id>:<artifact Id>:<version>

   Like      Feedback     Get Maven Dependency using command line get


 Sample 58. Run Jetty server through command line using maven

mvn jetty:run

   Like      Feedback     run jetty


 Sample 59. To see which POM contains missing transitive dependency

run mvn -X

   Like      Feedback     maven  check missing transitive dependency


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 Sample 60. Check JAVA_HOME value

echo $JAVA_HOME

   Like      Feedback     JAVA_HOME


 Sample 61. Set JAVA_HOME

export JAVA_HOME=

   Like      Feedback     JAVA_HOME


 Sample 62. To know the version of Maven

mvn --version

   Like      Feedback     maven  maven version


 Sample 63. Default Location of Maven Repository

~/m2./repository

   Like      Feedback     maven


 Sample 64. Command to create new project based on archtype

mvn archetype:generate

   Like      Feedback     maven


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 Sample 65. Build Maven project offline

mvn o package

   Like      Feedback     maven


 Sample 66. Recursively create directories

mkdir -p /home/newParentDir/newDir

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 Sample 67. How to check if Ubuntu i386 or amd64

Run 'lscpu' and check Architecture:

   Like      Feedback     ubuntu i386 or amd64


 Sample 68. Network information on ubuntu

ifconfig -a

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 Sample 69. Create a new Kafka topic

kafka-topics --zookeeper <host:port> --create --topic <topic_name> --partitions <number_of_partitions> --replication-factor <replication_factor>

Example -

kafka-topics --zookeeper <localhost:80> --create --topic newTopic --partitions 5 --replication-factor 1

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 Sample 70. Start the Kafka Server

Go to kafka home directory and execute

bin/kafka-server-start.sh config/server.properties

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 Sample 71. Location of .bash_profile in ubuntu

Its in your Home directory

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 Sample 72. Install AWS CLI ( Amazon Web Service Command Line Interface ) using brew

brew install awscli

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 Sample 73. Install MySQL using brew

brew install mysql

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 Sample 74. Install redis using brew

brew install redis

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 Sample 75. Execute class with main method using maven

Execute it from the folder with pom file

mvn exec:java -Dexec.mainClass="com.*.*"

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 Sample 76. Load Data from CSV into MySql Table

USAGE

LOAD DATA LOCAL INFILE '<CSV_FILE_NAME>' INTO TABLE <TABLE_NAME> FIELDS TERMINATED BY '<FIELD_SEPARATOR>';

EXAMPLE

LOAD DATA LOCAL INFILE 'xyz.csv' INTO TABLE EMPLOYEE FIELDS TERMINATED BY ',';

   Like      Feedback     load csv into mysql table  csv to mysql


 Sample 77. Get current Date in a specified format ( year, month,date,hour and minute) within shell script.

currentDate=$(date "+%Y-%m-%dT%H:%M")

   Like      Feedback     current date   current date in specific format


 Sample 78. Get information about a particular replication group

aws describe-replication-groups --replication-group-id <REPLICATION_GROUP_ID> --output text

   Like      Feedback     AWS  Amazon AWS  AWS CLI  describe-replication-groups


 Sample 79. Get Private IP address of a EC2 / Beanstalk instance using AWS CLI

aws ec2 describe-instances --output text --filters "Name=tag:Name,Values=<ELASTIC_BEANSTALK_INSTANCE_NAME>" | grep "PRIVATEIPADDRESSES"

   Like      Feedback     AWS  Amazon AWS  AWS CLI  describe-instances  Amazon EC2


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 Sample 80. Add an EC2 pem key to SSH

ssh-add <PEM_FILE_PATH>

   Like      Feedback     amazon was  pem key   ssh pem key   ssh-add


 Sample 81. Push your project to Git

cd <PROJECT_ROOT_DIRECTORY>
git init
git add --all
git commit -m "<COMMIT_COMMENT>"
git remote add origin <GIT_REPO_CLONE_URL>
git push -u origin <BRANCH>

example

cd /home
git init
git add --all
git commit -m "First Commit"
git remote add origin https://xys/abc.git
git push -u origin master

   Like      Feedback     Git


 Sample 82. Remove all folders and subfolders recursively and forcibly

rm -rf *

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 Sample 83. How to find lines in a file "File" containing "some text" ?

grep "some Text" File

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 Sample 84. Command to list of jdk modules

java --list-modules

   Like      Feedback     java 9  java 9 module


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 Sample 85. Switch to Java version 8 on Mac

export JAVA_HOME=`/usr/libexec/java_home -v 1.8`

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 Sample 86. How to get first few records in Redis

scan <NUMBER>

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 Sample 87. Get All attributes for a key

hgetall <KEY>

   Like      Feedback     Redis


 Sample 88. Retrieve information about the IAM User

aws iam get-user

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 Sample 89. Check if AWS is installed

which aws

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 Sample 90. Check if AWS has been configured properly

aws configure list | egrep "access_key|secret_key|region" | wc -l

Count of 3 means configured correctly

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 Sample 91. Get Elastic Cache Information

aws elasticache describe-replication-groups --query 'ReplicationGroups[?ReplicationGroupId==`<ELASTIC_CACHE_IDENTIFIER>`].NodeGroups[0].{ip:PrimaryEndpoint.Address}' --output text

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 Sample 92. Stop an EC2 instance through AWS CLI

aws ec2 stop-instances --instance-id=<EC2_INSTANCE_ID>

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 Sample 93. Instructing maven to set up files ( class path, project ) within eclipse

mvn eclipse:eclipse

   Like      Feedback     maven  eclipse


 Sample 94. Instructing maven to set up files ( class path, project ) within idea IntelliJ

mvn idea:idea

   Like      Feedback     maven  IntelliJ


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 Sample 95. Execute main method with argument using maven

mvn exec:java -Dexec.mainClass="com.*.*" -Dexec.args="args1 args 2" 

   Like      Feedback     maven  execute main method with args


 Sample 96. Set a Redis field value using key and field name

or Add a new Field to a Redis Key

HSET <Key> <field> <value>

   Like      Feedback     Redis  AWS


 Sample 97. Connect to Redis using Redis CLI

redis-cli -c -h <Redis End Point> -p <Port>

   Like      Feedback     Redis  aws


 Sample 98. Force Edit in Vi or Vim

:w!

   Like      Feedback     vi editor  vim editor


 Sample 99. Running process in background

<Command> &

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 Sample 100. Run a program / command with security privileges of root / others

su

or

su <username>

or

sudo su <username>

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 Sample 101. Running angular development server

ng serve

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 Sample 102. Create mew angular component

ng generate component <component_name>

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 Sample 103. Create new angular project using angular CLI

ng new <project_name>

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 Sample 104. Create new angular project using angular CLI with routing enabled

ng new <project_name> --routing

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 Sample 105. Moving a file to staging

git add

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 Sample 106. Moving file from Head on local to remote ?

git push <file_name>

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 Sample 107. Does git commit , commits the file to remote ?


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 Sample 108. Setting the remote project for the Git initialized local project

git remote add origin <git_repo_url>

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 Sample 109. Merging remote changes to local

git pull

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 Sample 110. Create a Git branch

Git branch <Branch_name>

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 Sample 111. Switch to a new branch in git

git checkout <branch_name>

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 Sample 112. Create and checkout the new branch in git

git checkout -b <branch_name>

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 Sample 113. Rebase a branch with master

git rebase master

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 Sample 114. Add all files to the index for commit and push in git

git add .

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 Sample 115. Git commit

git commit -m "Commit Message"

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 Sample 116. Steps in Git push from local to remote

git add .
git commit -m "message"
git push

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 Sample 117. Installing angular Redux module

npm install redux @angular-redux/store

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 Sample 118. Put a folder recursively using sftp

sftp <user_name>@<machine_address> 

put - r <folder_path>

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 Sample 119. Change commit message in Git

git commit --amend

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 Sample 120. Git - Remove a Folder forced and recursively from the index

git rm -rf <folder_name>

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 Sample 121. Git - Add only java files to the index

git add *.java

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 Sample 122. Cannot connect to the Docker daemon. Is the docker daemon running on this host?

Try running with sudo

Try following commands

sudo service docker stop

sudo nohup docker daemon -H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock &

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 Sample 123. Load Docker image locally

sudo docker load -i <LOCAL_IMAGE_FILE>

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 Sample 124. shim error: docker-runc not installed on system

Run -

sudo ln -s /usr/libexec/docker/docker-runc-current /usr/bin/docker-runc

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 Sample 125. Could not find module "@angular-devkit/build-angular" from

npm install --save-dev @angular-devkit/build-angular

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 Sample 126. Install RxJs

npm install rxjs

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 Sample 127. Install rxjs-compat

npm install --save rxjs-compat

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 Sample 128. Checking EC2 metainformation

curl http://<EC2_IP>/latest/meta-data

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 Sample 129. Git -Force checkout another branch

git checkout -f <Branch_Name>

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