| Command |
Description |
|
# alias hh='history' |
set an alias for a command - hh = history [man] |
|
# apropos ...keyword |
display a list of commands that pertain to keywords of a program , useful when you know what your program does, but you don't know the name of the command [man] |
|
# chsh |
change shell command [man] |
|
# chsh --list-shells |
nice command to know if you have to remote into another box [man] |
|
# gpg -c file1 |
encrypt a file with GNU Privacy Guard [man] |
|
# gpg file1.gpg |
decrypt a file with GNU Privacy Guard [man] |
|
# ldd /usr/bin/ssh |
show shared libraries required by ssh program [man] |
|
# man ping |
display the on-line manual pages for example on ping command - use '-k' option to find any related commands [man] |
|
# mkbootdisk --device /dev/fd0 `uname -r` |
create a boot floppy [man] |
|
# wget -r www.example.com |
download an entire web site [man] |
|
# wget -c www.example.com/file.iso |
download a file with the ability to stop the download and resume later [man] |
|
# echo 'wget -c www.example.com/files.iso' | at 09:00 |
start a download at any given time [man] |
|
# whatis ...keyword |
displays description of what a program does [man] |
|
# who -a |
show who is logged on, and print: time of last system boot, dead processes, system login processes, active processes spawned by init, current runlevel, last system clock change [man] |
Download offline copy 
Other useful commands 
