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Accepted
Eytan
Asked: 2012-02-05 15:10:06 +0800 CST

shell script (KSH) + set file to param & perform test between param and string

  • 772

in my linux machine red-hat 5.1 - in ppp file - I have only the signature.pl string !!!

  • remark - third application write the signature.pl string in to ppp file

I set ppp file in $a param And compare $a with signature.pl

But as all see here this not equal - why ? or if I have empty space? How to solve this?

    # more /var/tmp/ppp
    signature.pl
    # a=`cat /var/tmp/ppp`
    # echo $a
    signature.pl
    # [[ $a = signature.pl ]] && echo equal

or

    # [[ $a == signature.pl ]] && echo equal

diff example that works ! - from ksh shell (LINUX RED-HAT 5.1) 

[u@h w]# echo signature.sh > file
[u@h w]# cat file
signature.sh
[u@h w]# a=`cat file`  
[u@h w]# echo $a
signature.sh
[u@h w]# [[ $a = signature.sh ]] && echo eq

 its print "eq"
linux bash ksh shell-scripting

1 Answers

  1. Best Answer

    You need two equal signs:

    [[ $a == signature.pl ]] && echo equal
    • 3