An A-Z Index of the Bash command line for Linux.

adduser  Add a user to the system  addgroup Add a group to the system  alias    Create an alias •  apropos  Search Help manual pages (man -k)  apt-get  Search for and install software packages (Debian/Ubuntu)  aptitude Search for and install software packages (Debian/Ubuntu)  aspell   Spell Checker  awk      Find and Replace text, database sort/validate/indexb  basename Strip directory and suffix