Re^2: Finding commands in Unix PATH

perl -le "/grep/ and print for @ARGV" ${(onk)commands}
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whatever ${(onk)commands} is/does. I'm not familiar with the peculiarities zsh.

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Re^3: Finding commands in Unix PATH by Fletch (Bishop) on Jun 05, 2008 at 14:00 UTC
Zsh has several flags that affect parameter expansion. The `k` flag says to expand a hash into a list of its keys (rather than the default which is to expand into a list of its values; or you index it like `${commands[ls]}` and get the path to `ls`). The `o` flag says to sort the resulting expansion by name in ascending order (the `on` is actually wrong but works; I was confuzzling glob expansion qualifiers where it's `oX` where X specifies what to sort on (e.g. `n` for filename, or `m` for modification time)). So Perl's in a run for its money with regards to line-noisy-ness compared to terse zsh. :) The cake is a lie. The cake is a lie. The cake is a lie.	[reply]

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Re^3: Finding commands in Unix PATH
by Fletch (Bishop) on Jun 05, 2008 at 14:00 UTC

Zsh has several flags that affect parameter expansion. The k flag says to expand a hash into a list of its keys (rather than the default which is to expand into a list of its values; or you index it like ${commands[ls]} and get the path to ls). The o flag says to sort the resulting expansion by name in ascending order (the on is actually wrong but works; I was confuzzling glob expansion qualifiers where it's oX where X specifies what to sort on (e.g. n for filename, or m for modification time)).

So Perl's in a run for its money with regards to line-noisy-ness compared to terse zsh. :)

The cake is a lie.
The cake is a lie.
The cake is a lie.

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