Re^2: Read System output Into a variable Name?

Backticks are less efficient than using open() and |. For one thing, backticks have to read the whole result into memory at once. For another, having the second process running while you're dealing with the input allows the scheduler to be more efficient.

Additionally, backticks interpolate, which can cause issues with set-id scripts. Pipes get around this.

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Comment on Re^2: Read System output Into a variable Name?

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Re^3: Read System output Into a variable Name? by halley (Prior) on Feb 01, 2005 at 21:11 UTC
For the latter issue, regarding interpolation of the command string itself, see `qx//` with single-quotes. `$output = qx' command @which $should not be interpolated ';` [download] -- `[ e d @ h a l l e y . c c ]`	[reply] [d/l] [select]