Service Manual

UNIX Utility Function
env
Set and print environment.
expr
Evaluate expression.
fc
List the history of commands on the computer.
fg
Change the background process to the foreground process.
file
Determine the file type.
find
Walk a file hierarchy.
ftp
Internet file 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
Configure network interface parameters.
iostat
Report I/O statistics.
ln
Make links.
ls
List directory contents.
md5
Calculates and verifies 128-bit MD5 hashes.
more
Filter for browsing text files.
netstat
Show the network status
nice
Execute a utility with an altered scheduling priority.
nohup
Invoke a command immune to hangups.
paste
Join files 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 files.
ssh
Open the SSH client (remote login program).
stty
Change the settings of a UNIX computer terminal.
tail
Display the last part of a file.
test
Condition evaluation utility.
ulimit
Get and set process limits.
umask
Set the file creation mode mask.
84
Smart Scripting