Beefy Boxes and Bandwidth Generously Provided by pair Networks
Don't ask to ask, just ask

Re^2: system and -e question

by afoken (Prior)
on Dec 29, 2012 at 18:25 UTC ( #1010838=note: print w/ replies, xml ) Need Help??

in reply to Re: system and -e question
in thread system and -e question

2teez++. Using symlink avoids messing with the unknown system default shell:

Passing unquoted variables to a single-string system really begs for trouble, as soon as variables contain meta characters. Quoting rules differ with the shell used (and become a real nightmare on Windows), and there is no safe way to find which rules work as intended.

Using symlink also avoids the overhead of creating a new, complex process for just a single kernel call, and gives a clear error code in $! instead of returning some obscure exit code and some random text on STDERR of the child process.


Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)

Comment on Re^2: system and -e question
Download Code

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1010838]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others browsing the Monastery: (5)
As of 2015-11-29 13:06 GMT
Find Nodes?
    Voting Booth?

    What would be the most significant thing to happen if a rope (or wire) tied the Earth and the Moon together?

    Results (750 votes), past polls