Useful linux commands

Related to files

MOVE

mv path path

COPY

cp path path

REMOVE

rm file

rm -r folder

UNTAR

tar -xvzf file.tar.gz

tar -xvjf file.tar.tbz

or install dtrx

REDIRECT

> redirects stdout to file and overwrites

>> redirects stdout to file and appends

< redirects stdin to a command

PIPE

| gives the output of a command as input to another command

LIST FOLDERS

ls -d */

LIST FILES WITH SIZE

ls -lhS

FIND FILE

find -iname "filename"

GREP

find text in file/text

dpkg --list | grep PACKAGE

case insensitive

grep -i ...

find text in files

grep -R wordtofind /home/luke

SORT

sort text.txt > sorted-text.txt

UNIQ

uniq text.txt > uniq-text.txt

REPLACE TEXT

replace only first occurrence on each line

sed 's/texttofind/textreplace/' text.txt

replace all (add g)

sed 's/texttofind/textreplace/g' text.txt

REMOVE A LINE IF CONTAINS PATTERN

awk '!/patterntofind/' file1 > file2

sed '/patterntofind/d' ./file1 > ./file2

Related to disks

MOUNT

sudo mount -t vfat /dev/sdb1 /media (FAT)

sudo mount /dev/sdb1 /media (ext)

sudo mount -t ntfs /dev/sdb1 /mnt/drive (NTFS)

UNMOUNT

sudo umount /path

AVAILABLE SPACE

df -Bm

LIST PARTITONS (needs parted)

sudo parted

print all

CLONE A DISK

sudo dd if=/dev/sdb of=/dev/sdc bs=4096 conv=notrunc,noerror

WRITE AN IMAGE ON A DISK

sudo dd if=sdcard.img of=/dev/sdb

Related to the computer

AVAIL RAM

free -m

CPU USAGE

top

GET CPU INFO

cat /proc/cpuinfo

CHECK BATTERY POWER

cat /sys/class/power_supply/BAT0/power_now

LIST DRIVERS

lsmod

GET DRIVER INFO

modinfo MODULE

GET ENV INFO

env

LIST USB DEVICES

lsusb

GET CPU TEMP 

Raspberry Pi

vcgencmd measure_temp

PC

cat /sys/class/thermal/thermal_zone0/temp

Related to packages

LIST INSTALLED PACKAGES (with version and info)

dpkg --list | grep PACKAGE

INSTALL DEB PACKAGE

sudo dpkg -i PACKAGE

sudo apt-get install -f

DOWNLOAD A GIT FOLDER

git clone <url>

Related to network

LIST NETWORK ADAPTERS

ifconfig

LIST WIFI ADAPTERS

iwconfig

SCAN WIFI

iwlist wlan0 scan

CONNECT TO WPA WIFI

wpa_passphrase NETWORKSSID > wpa.conf
then enter password

sudo wpa_supplicant -B -Dwext -iwlan0 -c wpa.conf

sudo dhclient -r

sudo dhclient wlan0