help with return codes


 
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# 1  
Old 02-04-2008
help with return codes

Hi

In an unix script I am using an Perl one liner perl -i -ne '-----'
If the perl one liner fails i am not able to catch the return code.
It always give 0 as return code. Can you tell me how can i catch the return code

perl -i -ne '---'
RETCODE=$?
echo $RETCODE

Thanks and Regards
Ammu
# 2  
Old 02-04-2008
works for me:

$ LANG=C ./test.sh
Can't open perl script "print hello": No such file or directory
2 <<= return code != 0


you can check success:

$perl -e 'print "hello\n" ' ; echo $?
hello
0


you can change the return value:
$perl -e 'print "hello\n"; exit 99; ' ; echo $?
hello
99
# 3  
Old 02-04-2008
Actually i am using the following perl onliner (to delete 1 and 2 line from the file)

perl -i -ne 'print unless 1..2' filename

echo $?

If i give a wrong file name too it gives return code it throws error and give return code 0
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