Re: quoting for system() and friends

There's a function quotemeta:

To quote from the doco:

Returns the value of EXPR with all non-alphanumeric characters backslashed. (That is, all characters not matching /A-Za-z_0-9/ will be preceded by a backslash in the returned string, regardless of any locale settings.) This is the internal function implementing the \Q escape in double-quoted strings.

Update:

Comment on Re: quoting for system() and friends

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Re^2: quoting for system() and friends by ikegami (Patriarch) on Mar 06, 2007 at 06:36 UTC
Forgot to check the requirements? `quotemeta` is useless here. `$ perl -e '$qs=quotemeta("\|"); system( qq{echo "$qs"} );' \\|` [download]	[reply] [d/l] [select]
Re^3: quoting for system() and friends by snoopy (Curate) on Mar 06, 2007 at 11:41 UTC
If you're constructing SQL statements, you avoid putting quotation marks around a string that allready been formatted with DBI's quote method. This is analogous as to how shell arguments constructed using the quotemeta function should be treated, ie: `$ perl -e '$qs=quotemeta("\|"); system( qq{echo $qs} );'` [download]	[reply] [d/l]
Re^4: quoting for system() and friends by ikegami (Patriarch) on Mar 06, 2007 at 16:39 UTC
Ah! Quoted strings were stuck in my mind, probably because we were just talking about them and that's how it's done in Perl. `perl -e '$qs=quotemeta("\|"); eval( qq{print "$qs"} );'` [download]	[reply] [d/l]


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