I suspect that this doesn't work because the "a" and "b" variables aren't in the environment. Try adding "export a;export b" in between the "b=" and "c=" lines.

Or you could just pass them on the command line: 

c=`perl -e 'if ( $ARGV[0] < $ARGV[1]} ) { print "1\n"; } else { print 
+"0\"; }' $a $b`

[download]
Or, since you are using perl anyway, replace this toplevel shell script with a perl script, and open the pipes from perl.

In reply to Re: exchanging data between shell script and perl -e by kschwab
in thread exchanging data between shell script and perl -e by Sinister

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