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Special paramenter

Created Montag 15 Oktober 2018


-- (double dash)

More precisely, a double dash (--) is used in bash built-in commands and many other commands to signify the end of command options, after which only positional parameters are accepted.


Example use: lets say you want to grep a file for the string -v. Normally -v will be considered the option to reverse the matching meaning (only show lines that do not match), but with -- you can grep for string -v like this:

grep -- -v file