Setup Guide

UNIX Utility Function
expr
Evaluate expression.
fc
List the history of commands on the computer.
fg
Change the background process to the foreground process.
file
Determine the le type.
find
Walk a le hierarchy.
ftp
Internet le transfer program.
getopts
Called each time you process an argument.
grep
Print lines matching a pattern.
hostname
Set or print the name of the current host system.
ifconfig
Congure network interface parameters.
iostat
Report I/O statistics.
ln
Make links.
ls
List directory contents.
md5
Calculates and veries 128-bit MD5 hashes.
more
Filter for browsing text les.
netstat
Show the network status
nice
Execute a utility with an altered scheduling priority.
nohup
Invoke a command immune to hangups.
paste
Join les horizontally.
ping
Send ICMP ECHO_REQUEST packets to the network hosts.
ps
Process status.
pwd
Return working directory name.
sed
Stream editor.
sleep
Suspend execution for an interval of time.
sort
Sort or merge text les.
ssh
Open the SSH client (remote login program).
stty
Change the settings of a UNIX computer terminal.
tail
Display the last part of a le.
test
Condition evaluation utility.
ulimit
Get and set process limits.
umask
Set the le creation mode mask.
vmstat
Report virtual memory statistics.
wait
Await process completion.
wc
Word, line, and byte count.
who
Display the users who are currently logged in.
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