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I am trying to design a shell script that will take as an input the name of file.It will then go through each lines inside the file and remove each line ..I mean erase all the lines once it finishes scanning the file.
Originally posted by makuyl Try: grep -vx "123" file > file2 && mv -f file2 file
BTW: for sed to replace you can use "sed -i '/123/d' file" but that removes the first line as well
basicly the same as mine except you need to use the mv trick if you grep it directly. if you first cat it out you can direct it straightr over the initial file. (tried and tested, had a real brainteaser with some tail sessions which lead me to believe there is a slight bug in grep / tail but enough of that.. (: )