Common terminal commands on Mac OS X

I’m a new user of Mac OS X as it’s unix based OS all the important things need to handle with bash/command. The prompt is called as Terminal which resides at /Application/Utilities. Now the commands, there are the commands we may need follows:

alias – Create an alias
alloc – List used and free memory
awk – Find and Replace text within file(s)

basename – Convert a full pathname to just a folder path
bash – Bourne-Again SHell (Linux)
bless – Set volume bootability and startup disk options.
break – Exit from a loop

cal – Display a calendar
case – Conditionally perform a command
cat – Display the contents of a file
cd – Change Directory
chflags – Change a file or folder’s flags.
chgrp – Change group ownership
chmod – Change access permissions
chown – Change file owner and group
chroot – Run a command with a different root directory
cksum – Print CRC checksum and byte counts
clear – Clear terminal screen
cmp – Compare two files
comm – Compare two sorted files line by line
complete – Edit a command completion [word/pattern/list]
continue – Resume the next iteration of a loop
cp – Copy one or more files to another location
cron – Daemon to execute scheduled commands
crontab – Schedule a command to run at a later date/time
cut – Divide a file into several parts

date – Display or change the date & time
dc – Desk Calculator
dd – Data Dump – Convert and copy a file
df – Display free disk space
diff – Display the differences between two files
diff3 – Show differences among three files
dirname Convert a full pathname to just a path
dirs Di – play list of remembered directories
diskutil – Disk utilities – Format, Verify, Repair
ditto – Copy files and folders
dscl – Directory Service command line utility
du – Estimate file space usage

echo – Display message on screen
ed – A line-oriented text editor (edlin)
enable – Stop or start printers and classes.
env – Set environment and run a utility
eval – Evaluate several commands/arguments
exec – Execute a command
exit – Exit the shell
expect – Programmed dialogue with interactive programs
expand – Convert tabs to spaces
expr – Evaluate expressions

false – Do nothing, unsuccessfully
fdisk – Partition table manipulator for Darwin UFS/HFS/DOS
find – Search for files that meet a desired criteria
fmt – Reformat paragraph text
fold – Wrap text to fit a specified width
for – Expand words, and execute commands
foreach – Loop, expand words, and execute commands
fsck – Filesystem consistency check and repair
fs – usage Filesystem usage (process/pathname)
ftp – Internet file transfer program

GetFileInfo – Get attributes of HFS+ files
getopt – Parse positional parameters
goto – Jump to label and continue execution
grep – Search file(s) for lines that match a given pattern
groups – Print group names a user is in
gzip – Compress or decompress files

head – Display the first lines of a file
hdiutil – Manipulate iso disk images
history – Command History
hostname – Print or set system name

id – Print user and group names/id’s
if – Conditionally perform a command
info – Help info
install – Copy files and set attributes

jobs – List active jobs
join – Join lines on a common field

kill – Stop a process from running

l – List files in long format (ls -l)
ll – List files in long format, showing invisible files (ls -la)
less – Display output one screen at a time
ln – Make links between files (hard links, symbolic links)
locate – Find files
logname – Print current login name
login – log into the computer
logout – Exit a login shell (bye)
lpr – Print files
lprm – Remove jobs from the print queue
lpstat – Printer status information
ls – List information about file(s)
lsbom – List a bill of materials file
lsof – List open files

man – Help manual
mkdir – Create new folder(s)
mkfifo – Make FIFOs (named pipes)
more – Display output one screen at a time
mount – Mount a file system
mv – Move or rename files or directories

net – Manage network resources
nice – Set the priority of a command
nohup – Run a command immune to hangups

onintr – Control the action of a shell interrupt
open – Open a file/folder/URL/Application
osascript – Execute AppleScript

passwd – Modify a user password
paste – Merge lines of files
pbcopy – Copy data to the clipboard
pbpaste – Paste data from the Clipboard
pico – Simple text editor
ping – Test a network connection
pmset – Power Management settings
popd – Restore the previous value of the current directory
pr – Convert text files for printing
printenv – Print environment variables
printf – Format and print data
ps – Process status
pushd – Save and then change the current directory
pwd – Print Working Directory

quota – Display disk usage and limits

rcp – Copy files between machines.
repeat – Execute a command multiple times
rm – Remove files
rmdir – Remove folder(s)
rpm – Remote Package Manager
rsync – Remote file copy – Sync file tree (also RsyncX)

say – Convert text to audible speech
sched – Schedule a command to run at a later time.
screencapture – Capture screen image to file or disk
sdiff – Merge two files interactively
security – Administer Keychains, keys, certificates and the Security framework
sed – Stream Editor
set – Set a shell variable = value
setenv – Set an environment variable = value
setfile – Set attributes of HFS+ files
shift – Shift positional parameters
shutdown – Shutdown or restart OS X
sleep – Delay for a specified time
softwareupdate – System software update tool
sort – Sort text files
split – Split a file into fixed-size pieces
stop – Stop a job or process
su – Substitute user identity
sudo – Execute a command as another user
sum – Print a checksum for a file
switch – Conditionally perform a command

tail – Output the last part of files
tar – Tape ARchiver
tee – Redirect output to multiple files
test – Condition evaluation
time – Measure Program Resource Use
touch – Change file timestamps
traceroute – Trace Route to Host
tr – Translate, squeeze, and/or delete characters
true – Do nothing, successfully
tty – Print filename of terminal on stdin
type – Describe a command

umask – Users file creation mask
umount – a device
unalias – Remove an alias
uname – Print system information
unexpand – Convert spaces to tabs
uniq – Uniquify files
units – Convert units from one scale to another
unset – Remove variable or function names
unsetenv – Remove environment variable
users – Print login names of users currently logged in
uuencode – Encode a binary file
uudecode – Decode a file created by uuencode

vi – Text Editor

wc – Print byte, word, and line counts
where – Report all known instances of a command
which – Locate a program file in the user’s path
while – Execute commands
who – Print all usernames currently logged on
whoami – Print the current user id and name (`id -un’)

xargs – Execute utility – passing arguments

yes – Print a string until interrupted

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