Jenkins pipeline single quotes, double quotes, and escape character

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Jenkins pipeline single quotes, double quotes, and escape character

Foreword
Jenkins pipeline examples
summary
Reference Documents

Jenkins pipeline single quotes, double quotes, and escape character

Foreword

Jenkins pipeline consistent syntax single quotes, double quotes, and escape character syntax and Linux shell in.

apostrophe'

In all special characters between single quotes loses its special meaning

Double quotes"'

In most of the special characters between the double quotes loses its special meaning, except for the following exceptions:

$ No dollar value is used to extract variables
`Execute commands with anti-colon
\ To escape the backslash character

Jenkins pipeline examples

Example 1: I have $ 100 print

echo 'I have $100'
echo "I have \$100"

Example 2: Printing PATH environment variable

echo "PATH = ${PATH}"

Example 3: Print It's a dog.

echo "It's a dog"

Example 4: View python process ID

sh "ps -ef | grep python | grep -v grep | awk \'{print \$2}\'"

Example 5: execute multiple commands

sh """
    whoami
    pwd
    ls -ltra
"""

sh '''
    whoami
    pwd
    ls -ltra
'''

summary

In Jenkins pipeline, if no special characters, single and double quotes is the same, if you want to execute multiple lines of command, with three single quotes or three double quotes.

If there are special characters that require interpretation, use double quotes.

If necessary escaped with\Escapes.

Reference Documents

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