Lc_all=c pacman -v|tail -n3|base32|head -1 ? *

by 
$ lc_all=c pacman -v | tail -n3 | base32 | head -1

Let’s break down the command and its components:

  • lc_all=c: This sets the LC_ALL environment variable to c, which changes the language and localization settings to the C locale.
  • pacman -v: This command is used in Arch Linux to manage packages. The -v flag displays verbose output, providing more detailed information.
  • tail -n3: This command displays the last three lines of the output from the previous command. This is useful for extracting specific information from a larger output.
  • base32: This command encodes data using the Base32 encoding scheme. It is often used for binary-to-text encoding.
  • head -1: This command displays the first line of the output from the previous command, effectively extracting a single line from the encoded data.

Here’s an example to illustrate how this command works: 

$ pacman -v | tail -n3
[Info] Package1: Version 1.0
[Info] Package2: Version 2.0
[Info] Package3: Version 3.0

$ pacman -v | tail -n3 | base32
W0luZm86IFZlcnNpb24gMS4wCklGZm86IFZlcnNpb24gMi4wCklGZm86IFZlcnNpb24gMy4wCg==

$ pacman -v | tail -n3 | base32 | head -1
W0luZm86IFZlcnNpb24gMS4wCklGZm86IFZlcnNpb24gMi4wCklGZm86IFZlcnNpb24gMy4wCg==

In this example, the pacman -v command produces several lines of verbose output. We use tail -n3 to extract the last three lines, which contain version information for three packages. We then pipe this output to base32 to encode it in Base32. Finally, head -1 is used to extract the first line of the encoded data.

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