Grep Word Boundary - Before the first character in the string, if the first character is a word character. So, your regex is failing because / is not a valid word constituent. Web use \b to match on word boundaries, which will make your search match on whole words only. If you have stricter requirements, you need to specify them. Web there are three different positions that qualify as word boundaries: When used inside quotes ( or ''), \b and \<, \> work as word boundaries, as explained above. Web from man grep: When quotes are not used, \\b has to be used instead of. So your grep would look something like. Web note about \b , \<, \>:
When used inside quotes ( or ''), \b and \<, \> work as word boundaries, as explained above. So your grep would look something like. If you have stricter requirements, you need to specify them. Web there are three different positions that qualify as word boundaries: Web from man grep: So, your regex is failing because / is not a valid word constituent. Web note about \b , \<, \>: When quotes are not used, \\b has to be used instead of. Web use \b to match on word boundaries, which will make your search match on whole words only. Before the first character in the string, if the first character is a word character.