The most common command line tools for thunix shell

·Match Multiple Patterns (OR - AND - NOT) by using <a href="https://www.shellhacks.com/grep-or-grep-and-grep-not-match-multiple-patterns/">grep, sed and awk</a> tools for parsing files.

·Command-line <a href="https://thunix.net/~naglfar/sql">SQL</a> shell server

·Configuration file to get local (thunix) mail with Mutt:
or just do: cp /etc/skel/.muttrc ~/.muttrc

# directory for mail folders
set spoolfile = ~/Maildir
# to store sent mail
set record = +Sent
# will not move read messages
set move = 'no'
# which text editor is used
set editor = "vim %s"

# List the contents of an archive.
tar tf archive.tar.bz2
# Extract specific content from an archive.
tar xf archive.tar.bz2 content

Unix <a href="https://thunix.net/~rany/unix_perm_calc.html">Permissions Calculator</a> for chmod and umask file mode bits.