String::ShellQuote - quote strings for passing through the shell
$string = shell_quote @list;
$string = shell_quote_best_effort @list;
$string = shell_comment_quote $string;
This module contains some functions which are useful for quoting strings
which are going to pass through the shell or a shell-like object.
- shell_quote [string]...
-
shell_quote quotes strings so they can be passed through the shell.
Each string is quoted so that the shell will pass it along as a
single argument and without further interpretation. If no strings
are given an empty string is returned.
If any string can't be safely quoted shell_quote will croak.
- shell_quote_best_effort [string]...
-
This is like shell_quote, excpet if the string can't be safely quoted
it does the best it can and returns the result, instead of dying.
- shell_comment_quote [string]
-
shell_comment_quote quotes the string so that it can safely be
included in a shell-style comment (the current algorithm is that a sharp
character is placed after any newlines in the string).
This routine might be changed to accept multiple string arguments
in the future. I haven't done this yet because I'm not sure if the
strings should be joined with blanks ($``) or nothing ($,). Cast
your vote today! Be sure to justify your answer.
$cmd = 'fuser 2>/dev/null ' . shell_quote @files;
@pids = split ' ', `$cmd`;
print CFG "# Configured by: ",
shell_comment_quote($ENV{LOGNAME}), "\n";
Only Bourne shell quoting is supported. I'd like to add other shells
(particularly cmd.exe), but I'm not familiar with them. It would be a
big help if somebody supplied the details.
Roderick Schertler <roderick@argon.org>
perl(1).
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