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OS Lab (Commands (Entity & Access (usermod (GroupName (UserName), -a, …
OS Lab
Commands
clear
date
-u
cal
history
k
!!
cd
Arguments
pwd
cat
Arguments
/ >
ls
Arguments
-a
-r
-l
-s
-t
cp
Arguments
Arguments
-r
mv
Arguments
Arguments
mkdir
Arguments
rm
Arguments
-r
touch
Info
--help
man
whatis
info
apropos
Entity & Access
chmod
a, u,g,o
+, -, =
x w r
Arguments
sudo
useradd
UserName
passwd
UserName
userdel
-r
UserName
groupadd
GroupName
groupdel
GroupName
usermod
-a
-G
GroupName
UserName
deluser
who
write
UserName
wall <
Arguments
chown
chgrp
Basic
< > << >>
|
*
?
[a-b]
! ^
Compile
gcc , g++
-o
Arguments
-g
-O
Arguments
CMD Arguments
argc
*argv[ ]
Shell Scripting
./
Arguments
Shell Scripting
*#!/bin/bash
Peripheral
USER
PWD
HOME
PATH
Embedded
$#
$*
$0-n
$?
User
X=1 ,$K, $((1+2))
unset X
read
echo $X
Process Management
ps
ax
top
pstree
free
vmstat
kill
pid
&
ctrl+z
ctrl+c
fg
bg
jobs
git
init
status
add
commit
-a
-m
rm
log
checkout --
reset Head
branch
merge
stash
Computer
HardWare
SoftWare
Practical
System
OS
Usage
Transacting Between HW & Pratical SW
Resource Management
Impressive
Textual
Shell
Terminal
Command
3 more items...
CMD
Graphical
Desktop
KDE
Gnome
Data