Terminal emulator Codes

Terminal emulation is the ability to make a given computer appear like an actual terminal or client computer networked to a server or mainframe. Today, this is often done via software to access data or programs on the server or mainframe, which are usually only available to the terminal being emulated. You can even Access your Android's built-in Linux command line shell using terminal emulator for Android from google play store. And Unleash your inner geek!

# or $ any one will be used for representing

$ su :- Root Access

# cd /system :- Change directory From current directory to '/system':

# cd app :- From current directory (assume '/system') to one down with the name 'app' (now in '/system/app')

# cd .. :- From current directory, one up (back to '/system')

# ls :- List all files

# ls /system/app :- List all files in '/system/app'

# ls *Time* :- List all files with the word 'Time' in it (case sensitive)

# mount :- Mount Get mount info

# mount -o rw,remount -t yaffs2 /dev/block/mtdblock0 /system :- Mount '/system' as read-write

# mount -o ro,remount -t yaffs2 /dev/block/mtdblock0 /system :- Mount '/system' as read-only

# busybox mv a b :- Move, Copy and Remove , Move file from a to b

# busybox cp a b :- Copy file from a to b

# busybox rm a :- Remove file a

# reboot :- Reboot

# bmgr :- BlueTooth daemon

# uptime :- Prints how long your device has been running since it was last booted

# strace :- Used to administer SQLite databases.

# mkdir :- make directories 
Usage: mkdir [OPTION] DIRECTORY… 
eg. mkdir lhn

# vim :- Vi Improved, a programmers text editor
Usage: vim [OPTION] [file]…
eg. vim lhn.txt

# cp :- copy files and directories
Usage: cp [OPTION]… SOURCE DEST
eg. cp sample.txt sample_copy.txt 
cp sample_copy.txt target_dir

# mv :- move (rename) files
Usage: mv [OPTION]… SOURCE DEST
eg. mv source.txt target_dir
mv old.txt new.txt

# rm :- remove files or directories
Usage: rm [OPTION]… FILE…
eg. rm file1.txt , rm ­rf some_dir

# find :- search for files in a directory hierarchy
Usage: find [OPTION] [path] [pattern]
eg. find file1.txt, find ­name file1.txt

# history :- prints recently used commands
Usage: history

# cat :- concatenate files and print on the standard output
Usage: cat [OPTION] [FILE]…
eg. cat file1.txt file2.txt
cat ­n file1.txt

# grep :- print lines matching a pattern
Usage: grep [OPTION] PATTERN [FILE]…
eg. grep ­i apple sample.txt

# wc :- print the number of newlines, words, and bytes in files
Usage: wc [OPTION]… [FILE]…
eg.  wc file1.txt
wc ­L file1.txt

# sort :- sort lines of text files
Usage: sort [OPTION]… [FILE]…
eg. sort file1.txt
sort ­r file1.txt

# tar :- to archive a file
Usage: tar [OPTION] DEST SOURCE
eg. tar ­cvf /home/archive.tar /home/original
tar ­xvf /home/archive.tar

# kill :- to kill a process(using signal mechanism)
Usage: kill [OPTION] pid
eg. kill ­9 2275

# ps :- report a snapshot of the current processes
Usage: ps [OPTION]
eg. ps,  ps ­el

# who :- show who is logged on
Usage: who [OPTION]
eg. who , who ­b , who ­q

# passwd :- update  a user’s authentication tokens(s)
Usage: passwd [OPTION]
eg. passwd

# su :- change user ID or become super­user
Usage: su [OPTION] [LOGIN]
eg. su remo, su

# chown :- change file owner and group
Usage: chown [OPTION]… OWNER[:[GROUP]] FILE…
eg. chown remo myfile.txt

# chmod :- change file access permissions
Usage: chmod [OPTION] [MODE] [FILE]
eg. chmod 744 calculate.sh

# zip :- package and compress (archive) files
Usage: zip [OPTION] DEST SOURSE
eg. zip original.zip original

# unzip :- list, test and extract compressed files in a ZIP archive
Usage: unzip filename
eg. unzip original.zi

# ssh :- SSH client (remote login program)
“ssh is a program for logging into a remote machine and for
executing commands on a remote machine”
Usage: ssh [options] [user]@hostname
eg. ssh ­X guest@10.105.11.20

# scp :- secure copy (remote file copy program)
“scp copies files between hosts on a network”
Usage: scp [options] [[user]@host1:file1] [[user]@host2:file2]
eg. scp file1.txt guest@10.105.11.20:~/Desktop/

# fdisk :- partition manipulator
eg. sudo fdisk ­l

# umount :- unmount file systems
Usage: umount [OPTIONS] dir | device…
eg.  umount /media/target

# du :- estimate file space usage
Usage:  du [OPTION]… [FILE]…
eg. du

# df :- report filesystem disk space usage
Usage: df [OPTION]… [FILE]…
eg. df

# quota :- display disk usage and limits
Usage: quota [OPTION]
eg. quota ­v

# poweroff :- power off the system
Usage: poweroff [OPTION]
eg. poweroff

# kate :- KDE Advanced Text Editor
Usage:  kate [options][file(s)]
eg. kate file1.txt file2.txt

# vim :- Vi Improved, a programmers text editor
Usage: vim [OPTION] [file]…
eg. vi hello.c

# gedit :- A text Editor. Used to create and edit files.
Usage: gedit [OPTION] [FILE]…
eg. gedit

# bg :- make a foreground process to run in background
Usage: type ‘ctrl+z’  and then ‘bg ‘

# fg :- to make background process as foreground process
Usage: fg [jobid]

# jobs :- displays the names and ids of background jobs
Usage: jobs

# sed :- stream editor for filtering and transforming text
Usage: sed [OPTION] [input­file]…
eg. sed ‘s/love/hate/g’ loveletter.txt

# awk :- pattern scanning and processing language
eg.  awk ­F: ‘{ print $1 }’ sample_awk.txt

# find :- search for files in a directory hierarchy
Usage: find [OPTION] [path] [pattern]
eg. find ­name file1.txt

# locate :- find or locate a file
Usage: locate [OPTION]… FILE…

eg. locate file1.txt