Do you mean the grep program or Perl's grep? Whatever, the answer is no. As I feel kind, the correct solution is (or {s,c}ould be) 
s/[\[\]]//g;

[download]
Since this is only a hint I'll also tell you about 
perl -lpi -e '...'

[download]
separately. It is left as an exercise to the reader to check up the documents or any introductory Perl book and put it all together.

In reply to Re: removing square brackets by blazar
in thread removing square brackets by Angharad

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