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How to get exit status codes in bash from Perl?

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# 1  
Old 10-25-2005
How to get exit status codes in bash from Perl?
I apologize if I have already posted this query. I scanned back quite a few pages but could not find such a query.

If my perl code contains "exit(33)" how can I get that value in bash for use in a "if" statement.

Thanks,
Siegfried
# 2  
Old 10-25-2005
echo "${?}"
# 3  
Old 10-26-2005
To expand, all unix shells set a particular variable '$?' to the the exit status of the command just completed. So in your case:

Code:
my_perl_prog.pl

if [ $? -eq 33 ]
then
  <do something>
fi

# 4  
Old 10-26-2005
web page for bash documentation?
OK thanks! $? is for the return status code, $! is for PID. Is there a web page where these single character variables are documented? How about a man and info page too?

This is beginning to look a lot like perl. I bet $$ is the current PID.

Thanks,
Siegfried
# 5  
Old 10-26-2005
Under man sh, section Special Parameters
Under man ksh, section Parameters
# 6  
Old 10-26-2005
man <your shell name>

for example

man bash
man ksh
man sh

should tell you all you need to know ... and strictly speaking it's perl that looks like the shells not the other way round :-). Otherwise google should return a wealth of information
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