cd
Changes to another working directory page 601
chgrp
Changes the group associated with a file page 603
chmod
Changes the access mode (permissions) of a file page 604
chown
Changes the owner of a file and/or the group the file is associated with page 608
date
Displays or sets the system time and date page 630
df
Displays disk space usage page 636
du
Displays information on disk usage by file page 644
file
Displays the classification of a file page 653
finger
Displays information about users page 661
kill
Terminates a process by PID page 693
killall
Terminates a process by name page 695
nice
Changes the priority of a command page 734
nohup
Runs a command that keeps running after you log out page 736
ps
Displays process status page 746
sleep
Creates a process that sleeps for a specified interval page 760
stty
Displays or sets terminal parameters page 778
top
Dynamically displays process status page 798
umask
Establishes the file-creation permissions mask page 810
w
Displays information about system users page 814
which
Shows where in PATH a command is located page 817
who
Displays information about logged-in users page 819
