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Old 11-10-2008, 12:20 PM   #1
Passions
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Sed search for variable and delete entire line, but variable contains forward /'s


Hi, I wanted to search for a line and delete it, but the string contains a variable with various number of forward /'s.

path=/some/tmp/directory/that/is/different/each/time

sed "/$path/d" file

won't work. I tried replacing the forward slash, but I believe that's only when searching for strings.

sed "&$path&d" file
sed "%$path%d" file

doesn't work. Any ideas?
 
Old 11-10-2008, 12:49 PM   #2
TB0ne
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Quote:
Originally Posted by Passions View Post
Hi, I wanted to search for a line and delete it, but the string contains a variable with various number of forward /'s.

path=/some/tmp/directory/that/is/different/each/time

sed "/$path/d" file

won't work. I tried replacing the forward slash, but I believe that's only when searching for strings.

sed "&$path&d" file
sed "%$path%d" file

doesn't work. Any ideas?
Yep...precede the forward slash with a back-slash, like this:

sed "/\//d" file

should do it. The back-slash tells sed that the next thing is only a character, not any sort of 'special' thing (useful for things like $, ^, etc...)
 
Old 11-10-2008, 03:44 PM   #3
Kenhelm
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If an alternative to the usual '/' delimiter is used in a sed line range the first one has to be escaped with a '\'. Try:
sed "\%$path%d" file
 
  


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