Re: Logic-Based Permission Check

"chgrp" and "chmod." Are there built-in perl commands to execute these?

chgrp (no), chmod (yes).

See also:

perlfunc
UNIX 'command' equivalents in Perl

Comment on Re: Logic-Based Permission Check

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Re^2: Logic-Based Permission Check by Laurent_R (Canon) on Jul 30, 2013 at 21:23 UTC
Use the built-in chmod command rather than system calls. The first element in the list must be un numerical mode and must be an octal number (and not a string containing the number). Also, contrary to what you would do at the shell prompt under U*ix, don't forget the comma between the mode and the list of files (I once wasted half an hour before I figured out that). In brief, the typical syntax should be something like this: `chmod 0755, $file1, $file2, "foo.txt";` Check also for the chown function.	[reply] [d/l]

Replies are listed 'Best First'.

Re^2: Logic-Based Permission Check
by Laurent_R (Canon) on Jul 30, 2013 at 21:23 UTC

Use the built-in chmod command rather than system calls. The first element in the list must be un numerical mode and must be an octal number (and not a string containing the number). Also, contrary to what you would do at the shell prompt under U*ix, don't forget the comma between the mode and the list of files (I once wasted half an hour before I figured out that).

In brief, the typical syntax should be something like this:

chmod 0755, $file1, $file2, "foo.txt";

Check also for the chown function.

[reply]
[d/l]