Bash - Sed with square brackets

Asked Mar 22 '18 at 14:11

Active Mar 22 '18 at 14:11

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is exist any solution to use this sed (sed have problems with [ ] symbols):

sed -i "s|$old|$new|" $pathtofile

When i have in file on specific line string with "[]", for example:

something1 = [value]

In $old variable i have this line. Maybe some kind of reading variable and adding backslash before every [ or ] symbol? It is possible? Or is there better way to do it. I need to change line in file.

asked Mar 22 '18 at 14:11

MalySzaryCzlowiek

Please post more accurate samples of input and expected output as it is not clear from here. – RavinderSingh13 Mar 22 '18 at 14:16
I want to change $old="something1 = [value]" to $new="something1 = [helloworld]", for example. Input with some square brackets and output have some too. But output and input is in string variable already. – MalySzaryCzlowiek Mar 22 '18 at 14:38
Not clear please post more samples in your POST in CODE TAGS and let me know then. – RavinderSingh13 Mar 22 '18 at 16:28

Bash - Sed with square brackets

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