How do I search a File for a string exact match

CAGIRL · #1 (**permalink**) 07-28-2008

Hi, Can you help please.

I have the following comand:
if [[ `grep $l_string $l_tmp_file | tr -d ' '` = $l_string ]]; then
l_valid_string="Y"
fi
The problem I am trying to solve is that my l_string = ABC and my file contains
ABC
ABC_EFG

I only want back the value ABC exact match.

danmero · #2 (**permalink**) 07-28-2008

try this one:

Code:

grep '['$l_string']$' $l_tmp_file

CAGIRL · #3 (**permalink**) 07-28-2008

Awesome, Thank you very much, that worked.

era · #4 (**permalink**) 07-29-2008

Only coincidentally, actually. The addition of the square brackets is probably not correct, if I managed to understand your requirements.

You are trimming whitespace with tr -d ' ' -- are we to infer that spaces are allowed in the file before or after the match, on the same line?

Code:

grep "^ *$l_string *$" $l_tmp_file

If you don't want to allow spaces, remove both occurrences of space, asterisk.

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