用于输出函数结果的 Bash 脚本
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Bash script to output function result
提问by Greg R
I have a bash shell script executed by Jenkins / Hudson. For some reason when I create a function, the output of that function is not logged back to the console. This is an example of my code:
我有一个由 Jenkins / Hudson 执行的 bash shell 脚本。出于某种原因，当我创建一个函数时，该函数的输出不会记录回控制台。这是我的代码示例：
EDIT!!!- this culprit here is SSH... Is there a way to force its output back to console?
编辑！！！- 这里的罪魁祸首是 SSH... 有没有办法将其输出强制返回到控制台？
perform_task()
{
ssh [email protected] pwd
}
echo "Starting a task";
perform_task || { echo "The Task Failed"; exit 1; }
The output in the console is:
控制台中的输出是：
"Starting a task"
“开始任务”
if I move the commands outside of the function, I can see their output.
如果我将命令移到函数之外，我可以看到它们的输出。
Help on this would be greatly appreciated!
对此的帮助将不胜感激！
回答by Greg R
I partially solved the problem by getting the script to echo the command:
我通过让脚本回显命令部分解决了这个问题：
#!/bin/bash -ex
#!/bin/bash -ex
This still hides the output of that command, but at least I have insights about what's being run
这仍然隐藏了该命令的输出，但至少我对正在运行的内容有所了解
回答by Sagar
I just copied your function, added #!/bin/bash -eto the beginning of and pasted it into the "Execute Shell" of Jenkins.
我刚刚复制了您的函数，添加#!/bin/bash -e到的开头并将其粘贴到 Jenkins 的“执行外壳”中。
It worked fine!
它工作得很好！
Is your bash executable actually located at /bin? What OS are you running the script on?
您的 bash 可执行文件实际上位于/bin? 你在什么操作系统上运行脚本？
Building remotely on slave_1
[test] $ /bin/bash -xe /tmp/hudson1206345540964396738.sh
+ echo 'Starting a task'
Starting a task
+ perform_task
+ ssh slave_2 pwd
/home/jenkins
Finished: SUCCESS
回答by arkigos
Not sure about Jenkins or all that, but this worked for me:
不确定詹金斯或所有这些，但这对我有用：
perform_task()
{
ls -al
ps aux
pwd
}
echo "Starting a task"
perform_task || ( echo "The Task Failed" ; exit 1 )
回答by Op De Cirkel
add #!/bin/bashas first line of the file
The reason is the basic bourne shell(/bin/sh) does not support some of the features you use.
添加#!/bin/bash为文件的第一行 原因是基本的bourne shell(/bin/sh) 不支持您使用的某些功能。
