BASH_REMATCH does not commit

Question

I am trying to grab part of a path in bash:

Entrance: /Users/foo/.virtualenvs/venv-test-server

code:

#!/bin/zsh
regex="^.*\/venv-(.*)$"
if [[ $VIRTUAL_ENV =~ $regex ]] ; then
  echo "Matched!"
  echo ${BASH_REMATCH[1]}
fi

Output: Matched!

But the match is not printed. Why?

+3

bash regex zsh

melbic Jul 29. 15 at 8:49

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2 answers

The equivalent array in zsh

is match

:

% [[ foo_bar =~ (.*)_(.*) ]]
% print $match[1]
foo
% print $match[2]
bar

+3

chepner Jul 29. 15 at 17:08

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falsetru · Accepted Answer · 2015-07-29T08:51:36+0000

The script indicates zsh

instead of bash

:

#!/bin/bash
       ^^^^

If you want to use zsh

, before using =~

, you need to install BASH_REMATCH

:

setopt KSH_ARRAYS BASH_REMATCH