Reg python regexp

sankarramanv at gmail.com sankarramanv at gmail.com
Wed Mar 21 06:44:48 EDT 2018

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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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