Even after decades of using Unix on thousands of systems, I find that it’s still fun to discover various convolutions of sed and awk commands to perform command line wizardry. There’s a lot more to ...

The “l” at the beginning identifies /usr/bin/awk as a symbolic link. NOTE: Without the commas, the result would be “onetwothree”. Note that gawk allows you to ...

It's tragic when you know _what_ tool to use to get the job done, and you can't for the life of you figure out _how_ to use it.<BR><BR>What I have:<BR><BR>A flat file, tab delimited, with fields 1 ...

I love chaining commands as much as anyone, and sed, awk, grep, and perl are some of my best friends. However, remember that, in *nix, each command runs in its own process, the resources required for ...

We aren’t doing the next generation of Linux and Unix admins any favors by forgetting init scripts and fundamental tools I happened across a post on Reddit by chance, asking about textfile ...

Unix utility SED provides an effective and versatile way of deleting one or more lines from a designated file to match the needs of the user. This Unix command is used for command line processing.

Many years ago, probably close to 20, a regular point was made on the comp Usenet newsgroups about using the minimum tool to get the job done. That is, someone would ask for a quick and dirty way to ...