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Scripts (mostly) doing nothing when run from command line.

by graq (Curate)
on Jan 06, 2007 at 19:49 UTC ( #593328=perlquestion: print w/replies, xml ) Need Help??

graq has asked for the wisdom of the Perl Monks concerning the following question:

The perl scipts on my RedHat FC4 box are behaving strangely (as far as I can tell). The scripts error when run via the browser: Can't open perl script "/dir/": Permission denied

I've ensured that the permissions are correct (to the point of recursively chmodding everything in /var/www to world read and execute).

I created a small Hello World script (double checking that the shebang line was correct) in the cgi-bin directory - with the same problems. I ran the HW script from the command line with the syntax perl (which worked) and then ran it with the syntax ./ (which did not work). The second syntax had an effect as if I just hit the return key - it did nothing.

I then copied the script to my home directory and tried both syntaxes - they both worked. I then created and tried to replicate this behaviour, but, sadly, this script did not work using the second syntax from my home directory.

I'm stumped. I've pasted my experience below.

~>cd /var/www/cgi-bin /var/www/cgi-bin>cat #!/usr/bin/perl print "Content-type: text/html\n\n"; print "Hello World\n"; /var/www/cgi-bin>which perl /usr/bin/perl /var/www/cgi-bin>perl Content-type: text/html Hello World /var/www/cgi-bin>./ /var/www/cgi-bin>cp ~ /var/www/cgi-bin>cd ~>perl Content-type: text/html Hello World ~>./ Content-type: text/html Hello World ~>cd /var/www/cgi-bin /var/www/cgi-bin>cat #!/usr/bin/perl print "Content-type: text/html\n\n"; print "Hello World2\n"; /var/www/cgi-bin>perl Content-type: text/html Hello World2 /var/www/cgi-bin>./ /var/www/cgi-bin>cp ~ /var/www/cgi-bin>cd ~>perl Content-type: text/html Hello World2 ~>./ ~>diff ~>

EDIT 1: Specifically, all the scripts *are* executable.

EDIT2: ls -l /usr/bin/perl `which perl` -rwxr-xr-x 2 root root 15660 Mar 13 2006 /usr/bin/perl -rwxr-xr-x 2 root root 15660 Mar 13 2006 /usr/bin/perl

-=( Graq )=-

Replies are listed 'Best First'.
Re: Scripts (mostly) doing nothing when run from command line.
by gaal (Parson) on Jan 06, 2007 at 20:09 UTC

      Yes, that seems to be exactly what the problem is.

      Just to keep this SoPW complete: running /usr/bin/setenforce 0 as root appears to have fixed the problerm.

      Thank you.

      -=( Graq )=-

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