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.

Want to know the tricks of replacing a variable in a file using the SED command? This article will give you an overview of replacing a variable value in a file using SED. Before replacing a variable ...

The filter sed can process text from standard input and write its results to standard output. The input can be redirected from a file, and the output also can be redirected to a file using your ...

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 ...

As a relatively isolated junior sysadmin, I remember seeing answers on Experts Exchange and later Stack Exchange that baffled me. Authors and commenters might chain 10 commands together with pipes and ...

Shell scripts tend to fork a lot of processes to do things (although, IIRC, busybox is a mostly sh-compatible replacement that makes a whole lot of common unix commands be high performance built-ins ...