Re^3: capturing command output

in reply to Re^2: capturing command output
in thread capturing command output

Very interesting. ++

I had no idea that perl did that optimization, it is good to know, but it would be nice to have a way to control it.

Comment on Re^3: capturing command output

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Re^4: capturing command output by Eliya (Vicar) on Jan 25, 2012 at 14:17 UTC
but it would be nice to have a way to control it. You can already (indirectly) control it — at least in the direction of forcing the use of the shell. Just add a dummy `";"` to the command (which should always be possible without changing the semantics). Or simply call `sh -c "..."` yourself. (And be sure to add a comment regarding the ";", or else the next maintainer might remove that seemingly superfluous character again... :)	[reply] [d/l] [select]

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Re^4: capturing command output
by Eliya (Vicar) on Jan 25, 2012 at 14:17 UTC

but it would be nice to have a way to control it.

You can already (indirectly) control it — at least in the direction of forcing the use of the shell. Just add a dummy ";" to the command (which should always be possible without changing the semantics). Or simply call sh -c "..." yourself.

(And be sure to add a comment regarding the ";", or else the next maintainer might remove that seemingly superfluous character again... :)

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