Checking the header and trailer for a given string and if not found, exit out of the

er_ashu · #1 (**permalink**) 11-07-2007

hi,

How to check a given file for a string and if it's not found, exit out ofthe script?
e.g. a file Test123 is there whose header begins with #bt and trailer begins with #ed.
I have to check if the header and trailer matches as above and if not, exit out of the script.
How can we do it in Unix and perl.

Thanks in advance.

jim mcnamara · #2 (**permalink**) 11-07-2007

Code:

#!/bin/ksh
# $1 = input file
found=0

head -n 1 $1 | grep -q '^#bt'  && tail -n 1 $1 | grep -q '^#ed' && found=1

if [[ found -eq 0 ]] ; then
  exit 1
fi
echo "okay"

er_ashu · #3 (**permalink**) 11-08-2007

Thanks a lot....

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