Hi,
You don't need a regexp for this, the "replace" method on a string
will do what you want:
>>> s = 'this is a [string'
>>> print(s.replace('[', '\\['))
this is a \[string
Paul
On 21 March 2018 at 10:44, <sankarram...@gmail.com> wrote:
> Hi,
>
> I have a requirement.
>
> cmd="cat <file>|grep -c 'if [ -t 1 ]; then mesg n 2>/dev/null; fi'"
>
> I need to escape only the square brackets in above variable since its not
> grepping without escaping the brackets.
>
> Please help.
>
> Thanks.
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