[英]From shell script can we invoke function from here document
I would like to write a shell script that should call a function from here document as below: 我想编写一个shell脚本,该脚本应从此处的文档中调用一个函数,如下所示:
#!/bin/bash
funexit
funexit ()
{
exit 1
}
cat <<:EOD:
funexit
:EOD:
Please suggest a good solution to me! 请给我一个好的解决方案!
If I understood you correctly, then you need like this, 如果我对您的理解正确,那么您需要这样,
funexit()
{
echo "calling funexit"
exit 1
}
cat <<:EOD:
$(funexit)
:EOD:
Do you mean like this? 你是这个意思吗
#!/bin/bash
funexit() # Declare function
{
echo $1 # echo parameter
cat # cat STDIN
exit 1 # exit (badly)
}
funexit 3 <<EOD # call function with parameter 3
hello # pass "hello" to its STDIN
EOD
Output: 输出:
./go
3
hello
~: echo $? # Check exit status is 1
1
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