File Handling commands
mkdir – make directories
Usage: mkdir [OPTION] DIRECTORY...
ls – list directory contents
Usage: ls [OPTION]... [FILE]...
cd – changes directories
Usage: cd [DIRECTORY]
pwd – printname of current working directory
Usage: pwd
vim – Vi Improved, a programmers text editor
Usage: vim [OPTION] [file]...
cp – copy files and directories
Usage: cp [OPTION]... SOURCE DEST
mv – move (rename) files
Usage: mv [OPTION]... SOURCE DEST
rm – remove files or directories
Usage: rm [OPTION]... FILE...
find – search for files in a directory hierarchy
Usage: find [OPTION] [path] [pattern]
history – prints recently used commands
Usage: history
Text Processing
grep – print lines matching a pattern
Usage: grep [OPTION] PATTERN [FILE]...
wc – print the number of newlines, words, and bytes in files
Usage: wc [OPTION]... [FILE]...
sort – sort lines of text files
Usage: sort [OPTION]... [FILE]...
System Administration
chmod – change file access permissions
Usage: chmod [OPTION] [MODE] [FILE]
chown – change file owner and group
Usage: chown [OPTION]... OWNER[:[GROUP]] FILE...
su – change user ID or become superuser
Usage: su [OPTION] [LOGIN]
passwd – update a user’s authentication tokens(s)
Usage: passwd [OPTION]
who – show who is logged on
Usage: who [OPTION]
ps – report a snapshot of the current processes
Usage: ps [OPTION]
kill – to kill a process(using signal mechanism)
Usage: kill [OPTION] pid
Process Management
tar – to archive a file
Usage: tar [OPTION] DEST SOURCE
zip – package and compress (archive) files
Usage: zip [OPTION] DEST SOURSE
unzip – list, test and extract compressed files in a ZIP archive
Usage: unzip filename
bg – make a foreground process to run in background
Usage: type 'ctrl+z' and then 'bg <job id>'
fg – to make background process as foreground process
Usage: fg [jobid]
jobs – displays the names and ids of background jobs
Usage: jobs
Network
ssh – SSH client (remote login program)
Usage: ssh [options] [user]@hostname
scp – secure copy (remote file copy program)
Usage: scp [options] [[user]@host1:file1] [[user]@host2:file2]
File Systems
fdisk – partition manipulator
eg. sudo fdisk l
mount – mount a file system
Usage: mount t type device dir
umount – unmount file systems
Usage: umount [OPTIONS] dir | device...
du – estimate file space usage
Usage: du [OPTION]... [FILE]...
df – report filesystem disk space usage
Usage: df [OPTION]... [FILE]...
quota – display disk usage and limits
Usage: quota [OPTION]
Advanced Commands
reboot – reboot the system
Usage: reboot [OPTION]
poweroff – power off the system
Usage: poweroff [OPTION]
Editor commands
kate – KDE Advanced Text Editor
Usage: kate [options][file(s)]
vim – Vi Improved, a programmers text editor
Usage: vim [OPTION] [file]...
gedit – A text Editor used to create and edit files.
sage: gedit [OPTION] [FILE]...
mkdir – make directories
Usage: mkdir [OPTION] DIRECTORY...
ls – list directory contents
Usage: ls [OPTION]... [FILE]...
cd – changes directories
Usage: cd [DIRECTORY]
pwd – printname of current working directory
Usage: pwd
vim – Vi Improved, a programmers text editor
Usage: vim [OPTION] [file]...
cp – copy files and directories
Usage: cp [OPTION]... SOURCE DEST
mv – move (rename) files
Usage: mv [OPTION]... SOURCE DEST
rm – remove files or directories
Usage: rm [OPTION]... FILE...
find – search for files in a directory hierarchy
Usage: find [OPTION] [path] [pattern]
history – prints recently used commands
Usage: history
Text Processing
grep – print lines matching a pattern
Usage: grep [OPTION] PATTERN [FILE]...
wc – print the number of newlines, words, and bytes in files
Usage: wc [OPTION]... [FILE]...
sort – sort lines of text files
Usage: sort [OPTION]... [FILE]...
System Administration
chmod – change file access permissions
Usage: chmod [OPTION] [MODE] [FILE]
chown – change file owner and group
Usage: chown [OPTION]... OWNER[:[GROUP]] FILE...
su – change user ID or become superuser
Usage: su [OPTION] [LOGIN]
passwd – update a user’s authentication tokens(s)
Usage: passwd [OPTION]
who – show who is logged on
Usage: who [OPTION]
ps – report a snapshot of the current processes
Usage: ps [OPTION]
kill – to kill a process(using signal mechanism)
Usage: kill [OPTION] pid
Process Management
tar – to archive a file
Usage: tar [OPTION] DEST SOURCE
zip – package and compress (archive) files
Usage: zip [OPTION] DEST SOURSE
unzip – list, test and extract compressed files in a ZIP archive
Usage: unzip filename
bg – make a foreground process to run in background
Usage: type 'ctrl+z' and then 'bg <job id>'
fg – to make background process as foreground process
Usage: fg [jobid]
jobs – displays the names and ids of background jobs
Usage: jobs
Network
ssh – SSH client (remote login program)
Usage: ssh [options] [user]@hostname
scp – secure copy (remote file copy program)
Usage: scp [options] [[user]@host1:file1] [[user]@host2:file2]
File Systems
fdisk – partition manipulator
eg. sudo fdisk l
mount – mount a file system
Usage: mount t type device dir
umount – unmount file systems
Usage: umount [OPTIONS] dir | device...
du – estimate file space usage
Usage: du [OPTION]... [FILE]...
df – report filesystem disk space usage
Usage: df [OPTION]... [FILE]...
quota – display disk usage and limits
Usage: quota [OPTION]
Advanced Commands
reboot – reboot the system
Usage: reboot [OPTION]
poweroff – power off the system
Usage: poweroff [OPTION]
Editor commands
kate – KDE Advanced Text Editor
Usage: kate [options][file(s)]
vim – Vi Improved, a programmers text editor
Usage: vim [OPTION] [file]...
gedit – A text Editor used to create and edit files.
sage: gedit [OPTION] [FILE]...
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