如何将变量从Jenkinsfile传递给shell命令 [英] How to pass variables from Jenkinsfile to shell command
问题描述
我想在我的 Jenkinsfile
脚本中使用一个变量,然后将其值传递给shell脚本执行(作为环境变量或命令
但是以下 Jenkinsfile
:
< pre $
对于(我在['a','b','c']){
echo'
sh'echo'from shell i = $ i '
}
给出结果:
a shell中的
i =
b中的
i中的
c
i =
所需的输出如下所示:
a shell中的
i = shell中的
b
i = b $ bc中的b
中的b $ b = b $ b
任何想法如何将 i
的值传递给shell scipt?
编辑:根据 Matt的回答 ,我现在使用这个解决方案:
<$ (我在['a','b','c']){
echo i
shi = $ {i}; + echofrom shell i = $ i'
}
优点是,我不需要在shell脚本中转义。
您的代码使用的是文字字符串,因此您的Jenkins变量不会在shell命令内插入。您需要使用在您的字符串内插入
sh
。'
只会传递一个字符串,所以我们需要在这里做一些修改。
第一个是将 ' to
:
for我在['a','b','c']){
回声我
shshell的回声i = $ i
}
然而,现在我们需要在内部转义:
for(i in ['a','b','c']){
echo i
shecho \from shell i = $ i \
}
<另外,如果一个变量直接附加到一个字符串上,就像你在上面做的那样( $ i
到 i =
),我们需要用一些大括号关闭它:
for(i in ['a','b' ,'c']){
echo i
shecho \from shell i = $ {i} \
}
这会为您提供您想要的行为。
I want to use a variable which I am using inside of my Jenkinsfile
script, and then pass its value into a shell script execution (either as an environment variable or command line parameter).
But the following Jenkinsfile
:
for (i in [ 'a', 'b', 'c' ]) {
echo i
sh 'echo "from shell i=$i"'
}
Gives the output:
a
from shell i=
b
from shell i=
c
from shell i=
Desired output is something like:
a
from shell i=a
b
from shell i=b
c
from shell i=c
Any idea how to pass the value of i
to the shell scipt?
Edit: Based upon Matt's answer, I now use this solution:
for (i in [ 'a', 'b', 'c' ]) {
echo i
sh "i=${i}; " + 'echo "from shell i=$i"'
}
The advantage is, that I don't need to escape the "
in the shell script.
Your code is using a literal string and therefore your Jenkins variable will not be interpolated inside the shell command. You need to use "
to interpolate your variable inside your strings inside the sh
. '
will just pass a literal string. So we need to make a few changes here.
The first is to change the '
to "
:
for (i in [ 'a', 'b', 'c' ]) {
echo i
sh "echo "from shell i=$i""
}
However, now we need to escape the "
on the inside:
for (i in [ 'a', 'b', 'c' ]) {
echo i
sh "echo \"from shell i=$i\""
}
Additionally, if a variable is being appended directly to a string like you are doing above ($i
onto i=
), we need to close it off with some curly braces:
for (i in [ 'a', 'b', 'c' ]) {
echo i
sh "echo \"from shell i=${i}\""
}
That will get you the behavior you desire.
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