Linux on Aleem Isiaka

tar (child) xz Cannot exec No such file or directory

Mon, 10 Jul 2023 00:00:00 +0000

The error:

`1`	`tar (child): xz: Cannot exec: No such file or directory`

Is majorly an issue with the xz command not found on the host machine.

To verify, run:

`1`	`whereis xz`

Fix

To fix, use the installation command for your Linux distribution:

sudo apt-get install xz-utils          # Debian / Ubuntu
sudo yum install xz                    # RHEL / CentOS
sudo zypper in xz                      # OpenSuSE
sudo pacman -S xz                      # Arch Linux

Then untar again with:

Change files extension in a directory

Thu, 22 Jun 2023 00:00:00 +0000

Use Bash for loop, variable substitution, and mv to change the name of files in a directory modifying just the extension of the file

Searching for a pattern in the man pages

Tue, 20 Jun 2023 00:00:00 +0000

To search through the man pages for some keywords, use the -k option.

man -k [keyword]

This shows a result of the commands, and routines that match the keyword with a one-line description of what they are about.

man -k passwd shows all the possible entries for passwd in the manual pages.

The apropos

The man -k [keyword] command is similar to a help utility called apropos which is available both on Unix and Linux. See it as a shortcut.

Know the man(nual) pages

Sun, 18 Jun 2023 00:00:00 +0000

There are many ways to get help as a Linux administrator, manual pages are one of them as they are always close - accessible via the terminal.

The manual pages, called “man pages” is a local documentation and description of software packages, drivers, routines, and libraries on a Linux machine.

To use it run man [command|library|routine|driver] and replace the command with the name of a command to find a manual.