script-problem

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

hi, i just started programming perl and already stumbled across a (to me) inexplicable problem. but see for yourself:

1      [23:34, 47deg, 54%] steppenwolf@baby:~/documents/perl$  ./print
+.pl     
2      bash: ./print.pl: /usr/bin/perl: bad interpreter: Permission de
+nied    
3      [23:34, 47deg, 54%] steppenwolf@baby:~/documents/perl$  perl pr
+int.pl     
4      hello world![23:34, 47deg, 54%] steppenwolf@baby:~/documents/pe
+rl$  la /usr/bin/perl    
5      -rwxr-xr-x  2 root root 1.1M Sep 26 12:22 /usr/bin/perl    
6      [23:34, 47deg, 54%] steppenwolf@baby:~/documents/perl$  cat pri
+nt.pl     
7      #!/usr/bin/perl    
8          
9      print 'hello world!';    
10      [23:34, 47deg, 53%] steppenwolf@baby:~/documents/perl$
[download]

can anyone give me a hint on how to solve that problem? thanks, -wanja

Comment on script-problem Download Code

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Re: script-problem by gellyfish (Monsignor) on Oct 20, 2004 at 08:49 UTC
The `#!/usr/bin/perl` is either wrong for your system (the path to perl may be /usr/local/bin/perl or something else) or there is some unprintable character after the 'perl' adding a '--' after that will fix that. /J\	[reply] [d/l]
Re: script-problem by eyepopslikeamosquito (Archbishop) on Oct 20, 2004 at 09:12 UTC
In addition to gellyfish's excellent response, I'd like to see the output of these two commands: `od -cx print.pl type perl` [download] In the od -cx output I'd expect to see \n but not \r -- is it possible the file print.pl is in DOS format?	[reply] [d/l]
Re: script-problem by Anonymous Monk on Oct 20, 2004 at 09:43 UTC
You forgot to make your script executable, as this demo shows: `$ ls -l /usr/bin/perl -rwxr-xr-x 2 root root 2478418 Jan 16 2004 /usr/bin/perl $ rm -f print.pl $ echo '#!/usr/bin/perl' > print.pl $ echo 'print "Hello, world\n"' >> print.pl $ ls -l print.pl -rw------- 1 anonymous monk 39 Oct 20 11:33 print.pl $ ./print.pl bash: ./print.pl: /usr/bin/perl: bad interpreter: Permission denied $ chmod +x print.pl $ ls -l print.pl -rwx------ 1 anonymous monk 39 Oct 20 11:33 print.pl $ ./print.pl Hello, world` [download] It's not that your she bang line is wrong as a previous poster suggested. If that was the case, you would get the message: `$ bash: ./print.pl: /usr/bin/perl: bad interpreter: No such file o +r directory` [download] which you would also get if there were "unreadable" characters after 'perl' as the other posted suggested.	[reply] [d/l] [select]
Re^2: script-problem by Anonymous Monk on Oct 20, 2004 at 10:28 UTC
hi guys, thanks for your very quick (!) help! unfortunately, neither one helped me get rid of my problem. here is some more output as requested: [12:28, 36deg, 31%] steppenwolf@baby:~/documents/perl$ la print.pl -rwxr-xr-x 1 steppenwolf steppenwolf 39 Oct 20 12:26 print.pl [12:28, 36deg, 31%] steppenwolf@baby:~/documents/perl$ which perl /usr/bin/perl [12:28, 36deg, 31%] steppenwolf@baby:~/documents/perl$ type perl perl is /usr/bin/perl [12:28, 36deg, 31%] steppenwolf@baby:~/documents/perl$ od -cx print.p +l 0000000 # ! / u s r / b i n / p e r l \ +n 2123 752f 7273 622f 6e69 702f 7265 0a6c 0000020 \n p r i n t ' h e l l o w +o 700a 6972 746e 2720 6568 6c6c 206f 6f77 0000040 r l d ! ' ; \n \0 6c72 2164 3b27 000a 0000047 [12:28, 36deg, 31%] steppenwolf@baby:~/documents/perl$ [download] does that help you?	[reply] [d/l]
Re^3: script-problem by Joost (Canon) on Oct 20, 2004 at 11:24 UTC
Maybe your script is on a filesystem mounted with the `noexec` option. do any other (non-perl) binaries or scripts work in that directory? "What should it profit a man, if he should win a flame war, yet lose his cool?"	[reply] [d/l]
Re^4: script-problem by Anonymous Monk on Oct 21, 2004 at 09:12 UTC
Re^4: script-problem by Anonymous Monk on Nov 08, 2004 at 15:58 UTC