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Re^5: how to use perl variable in system command to run on unix

by Arunbear (Parson)
on Sep 04, 2013 at 09:50 UTC ( #1052274=note: print w/ replies, xml ) Need Help??


in reply to Re^4: how to use perl variable in system command to run on unix
in thread how to use perl variable in system command to run on unix

Because in this case you want a literal "$9", you don't want it to be expanded by Perl. An example that you can experiment with:

% date Wed Sep 4 10:41:55 BST 2013 % date | awk '{ print $2 }' Sep % perl -de0 Loading DB routines from perl5db.pl version 1.32 Editor support available. Enter h or `h h' for help, or `man perldebug' for more help. main::(-e:1): 0 DB<1> $cmd = qq[date | awk '{ print $2 }'] DB<2> p $cmd date | awk '{ print }' DB<3> p qx/$cmd/ Wed Sep 4 10:47:41 BST 2013 DB<4> $cmd = qq[date | awk '{ print \$2 }'] DB<5> p $cmd date | awk '{ print $2 }' DB<6> p qx/$cmd/ Sep DB<7> q %


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Re^6: how to use perl variable in system command to run on unix
by tousifp (Novice) on Sep 04, 2013 at 11:59 UTC
    Thanks. I got it. Will try your code later surely.

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