Commands using sudo sorted by votes

Commands using sudo (537)

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Change your timezone
This is sample output - yours may be different.
2

sudo cp /usr/share/zoneinfo/Europe/Paris /etc/localtime

egeoffray · 2013-03-14 11:53:09 2204

Install Linux Kernel Headers on Debian-based systems

Install the Linux kernel headers for currently running kernel version on Debian-based systems via apt-get Show Sample Output

sudo apt-get install linux-headers-`uname -r`

farazyashar · 2013-04-18 03:18:26 9

Install Restricted Multimedia Codecs in Ubuntu 14.04

Install the unrestricted version of libavcodec . It will keep away from any issues or missing codecs in video editors or transcoders. Install unrestricted version of libavcodec by the command.
This is sample output - yours may be different.
2

sudo apt-get install libavcodec-extra

unixmonkey57489 · 2014-06-03 16:28:22 9
Clone perms and owner group from one file to another

Copy both perms and owner group from one file to another.
This is sample output - yours may be different.
2

for i in chmod chown; do sudo "$i" --reference=/home/user/copyfromfile /tmp/targetfile; done

zlemini · 2014-08-28 15:08:32 8
Null a file with sudo
This is sample output - yours may be different.
2

sudo bash -c "> /var/log/httpd/access_log"

zlemini · 2014-10-02 15:39:47 12
Remove all old kernels

http://askubuntu.com/questions/89710/how-do-i-free-up-more-space-in-boot
This is sample output - yours may be different.
2

sudo apt-get purge $(dpkg -l linux-{image,headers}-"[0-9]*" | awk '/ii/{print $2}' | grep -ve "$(uname -r | sed -r 's/-[a-z]+//')")

funkjedi · 2015-03-15 15:57:19 9
Rolling upgrades via aptitude

This has been my "sysupgrade" alias since ca. 2006, first used on Debian Sid, then Sabayon, and it still does its duty on Mint nowadays without breaking stuff.
This is sample output - yours may be different.
2

sudo sh -c "aptitude update; aptitude -DrVWZ full-upgrade; aptitude autoclean; exit"

lordtoran · 2015-09-28 23:48:05 10
Get the Volume labels all bitlocker volumes had before being encrypted

Get information of volume labels of bitlocker volumes, even if they are encrypted and locked (no access to filesystem, no password provided). Note that the volume labels can have spaces, but only if you name then before encryption. Renaming a bitlocker partition after being encrypted does not have the same effect as doing it before. Show Sample Output
This is sample output - yours may be different.
```
BitLocker Volume labels:
/dev/nvme0n1p3 -> "OS_Install"
/dev/sda1 -> "DATA"
/dev/sdb1 -> "MY PEN"
```
2

sudo echo "BitLocker Volume labels:" && sudo dislocker-find | xargs -I{} sh -c 'echo -n "{} ->+ " ; sudo dislocker-metadata -V {} | grep string' | sed 's/+.*string://' | sed "s/'[^ ]* /\"/g" | sed 's/\ [^ ]*$/"/'

bugmenot · 2018-04-29 01:00:11 164
Capture FTP Credentials and Commands
This is sample output - yours may be different.
2

sudo tcpdump -nn -v port ftp or ftp-data

wuseman1 · 2019-02-03 05:14:56 32
Extract HTTP Passwords in POST Requests
This is sample output - yours may be different.
2

sudo tcpdump -s 0 -A -n -l | egrep -i "POST /|pwd=|passwd=|password=|Host:"

wuseman1 · 2019-02-03 05:15:28 901
Use QEMU to create a hardware dual-boot without rebooting

After downloading an ISO image, assuming you have QEMU installed, it’s possible to boot an ISO image in a virtual machine and then install that ISO from within the virtual machine directly to a physical drive, bypassing the need to reboot. Simply pass the ISO image as the -cdrom parameter, followed by “format=raw,file=/dev/sdb” (replace /dev/sdb with the drive you want to install to) as the hard drive parameter (making absolutely certain to specify the raw format, of course). Once you boot into the ISO image with QEMU, just run the installer as if it were a virtual machine — it’ll just use the physical device as an install target. After that, you’ll be able to seamlessly boot multiple distros (or even other operating systems) at once.
This is sample output - yours may be different.
2

sudo qemu-system-x86_64 -bios /usr/share/ovmf/x64/OVMF.fd -accel kvm -boot d -cdrom ubuntu-21.10-desktop-amd64.iso -drive format=raw,file=/dev/sdb -m 4096

realkstrawn93 · 2021-11-04 22:50:57 686
macOS: Save disk space by moving apps to external drives

Because Mac app bundles contain everything in one place, it makes running them from anywhere, including from a device such as a USB flash drive or external HDD, possible. So if your Mac has a mere 256GB of storage (as mine does), you can free up large quantities of disk space by storing apps like, say, Xcode on external devices.
This is sample output - yours may be different.
2

sudo mv /Applications/foo /Volumes/bar/Applications/foo && sudo ln -s /Volumes/bar/Applications/foo /Applications/foo

realkstrawn93 · 2022-01-20 18:03:36 355
Disassemble all ACPI tables on your system

The fact that Linux exposes the ACPI tables to the user via sysfs makes them a gold mine of valuable hardware information for low-level developers. Looping through each of them and disassembling them all makes them even more valuable.
This is sample output - yours may be different.
2

for i in /sys/firmware/acpi/tables/*; do sudo iasl -p $PWD/$(echo $i | cut -d\/ -f6) $i && sudo chown $USER $(echo $i | cut -d\/ -f6); done

realkstrawn93 · 2023-04-16 05:33:51 548
Sudoers: bypass all password prompts

If you as the sole user of a computer at home only don’t like needing to repeatedly type a password each time you run a command, using ‘NOPASSWD’ in sudoers for your specific username is for you.
This is sample output - yours may be different.
2

echo "$USER ALL=(ALL:ALL) NOPASSWD: ALL" | sudo tee -a /etc/sudoers

realkstrawn93 · 2023-08-10 22:19:18 162
List open sockets protocol/address/port/state/PID/program name
This is sample output - yours may be different.
1

sudo netstat -punta

zgomot · 2009-02-05 22:30:24 17
apt-get via sudo

An apt-get wrapper function which will run the command via sudo, but will run it normally if you're only downloading source files. This was a bit of an excuse to show off the framework of cmd && echo true || echo false ...but as you can see, you must be careful about what is in the "true" block to make sure it executes without error, otherwise the "false" block will be executed. To allow the apt-get return code to pass through, you need to use a more normal if/else block: apt-get () { if [ "$1" = source ]; then command apt-get "$@"; else sudo apt-get "$@"; fi }
This is sample output - yours may be different.
1

apt-get () { [ "$1" = source ] && (command apt-get "$@";true) || sudo apt-get "$@" }

mulad · 2009-02-19 04:17:24 6
Remove apps with style: nuke it from orbit

You can't stand programs x, y, and z. Remove all trace of their existence by adding this function to your config. It will remove the cruft, the settings, and such and such. This function doesn't even give a damn about you trying to remove programs that don't exist: it'll just for loop to the next one on your hit list. Show Sample Output
This is sample output - yours may be different.
```
hello@goodbye:~$ nuke amarok emacs vim
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Couldn't find package amarok
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Couldn't find package emacs
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Couldn't find package vim
hello@goodbye:~$
```
1

function nuke() { if [ $(whoami) != "root" ] ; then for x in $@; do sudo apt-get autoremove --purge $x; done; else for x in $@; do apt-get autoremove --purge $x; done; fi }

ruinbox · 2009-03-25 23:21:21 8
Throttling Bandwidth On A Mac

sudo ipfw pipe 1 config bw 50KByte/s Set the bandwidth (bw) limit to any number you want. For example you could have a 15kb pipe for X application and then a 100kb pipe for another application and attach things to those pipes. If a port isn’t attached to a pipe, it runs at full speed. Change the number (in this case 1) to a different number for a different pipe. The next step is to attach your port. sudo ipfw add 1 pipe 1 src-port 80 In this case anything on port 80 (http) will be set to a limit of 50Kbyte/s. If you want to attach a second port to this pipe, repeat the command but change the port number at the end. src : http://www.mactricksandtips.com/2008/12/throttling-bandwidth-on-a-mac.html
This is sample output - yours may be different.
1

sudo ipfw pipe 1 config bw 50KByte/s;sudo ipfw add 1 pipe 1 src-port 80

miccaman · 2009-07-02 23:17:49 6
Get the size of all the directories in current directory
This is sample output - yours may be different.
1

sudo du -sh $(ls -d */) 2> /dev/null

Code_Bleu · 2009-08-07 19:00:09 4
Watch postgresql calls from your application on localhost

It's certainly not nicely formatted SQL, but you can see the SQL in there...
This is sample output - yours may be different.
1

sudo tcpdump -nnvvXSs 1514 -i lo0 dst port 5432

ethanmiller · 2009-12-18 17:12:44 4
Fix the vi zsh bindings on ubuntu

Use sed to comment out any up/down bindings in zsh
This is sample output - yours may be different.
1

sudo sed -iorig '/$up\|down$/s/^/#/' /etc/zsh/zshrc

cbrinker · 2010-02-02 23:17:08 27
Show the 1000*1000 and 1024*1024 size of HDs on system
This is sample output - yours may be different.
1

awk '/d[a-z]+$/{print $4}' /proc/partitions | xargs -i sudo hdparm -I /dev/{} | grep 'device size with M'

rthemocap · 2010-03-02 20:06:03 5
Change attributes of files so you can edit them

I had problems in Ubuntu while trying to edit /etc/resolv.conf, even with sudo I couldn't make any change. After a 2 minutes search on google I found this command. Hope someone finds it useful. It works like chmod, with + and - to denote which attributes are being added and which are being removed. See other attributes on man pages or on wikipedia http://en.wikipedia.org/wiki/Chattr
This is sample output - yours may be different.
1

sudo chattr -i <file that cannot be modified>

leovailati · 2010-03-25 03:14:34 4
Spoof your wireless MAC address on OS X to 00:e2:e3:e4:e5:e6

If you want to check that the spoof worked, type the same command as earlier: ifconfig en1 | grep ether Now you will see: ether 00:e2:e3:e4:e5:e6 For the wired ethernet port: sudo ifconfig en0 ether 00:e2:e3:e4:e5:e6
This is sample output - yours may be different.
1

sudo ifconfig en1 ether 00:e2:e3:e4:e5:e6

rpavlick · 2010-03-30 21:48:55 4
How to speedup the Ethernet device

ethtool is used for querying settings of an ethernet device and changing them. In this example I setup 100 Mb/s full duplex on my Linux Box
This is sample output - yours may be different.
1

sudo ethtool -s eth0 speed 100 duplex full

0disse0 · 2010-04-05 10:36:27 8
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Use Perl like grep

Much better alternatives - grep-alikes using perl regexps. With more options, and nicer outputs.

RTFM function

Simple edit to work for OSX. Now just add this to your ~/.profile and `source ~/.profile`

encode HTML entities

Encodes HTML entities from input (file or stdin) so it's possible to directly past the result to a blog or HTML source file.

rename a file to its md5sum

Compute the average number of KB per file for each dir

Use this to find identify if dirs mostly contain large or small files.

Remove spaces from filenames - through a whole directory tree.

Sometimes, you don't want to just replace the spaces in the current folder, but through the whole folder tree - such as your whole music collection, perhaps. Or maybe you want to do some other renaming operation throughout a tree - this command's useful for that, too. To rename stuff through a whole directory tree, you might expect this to work: for a in `find . -name '* *'`;do mv -i "$a" ${a// /_};done No such luck. The "for" command will split its parameters on spaces unless the spaces are escaped, so given a file "foo bar", the above would not try to move the file "foo bar" to "foo_bar" but rather the file "foo" to "foo", and the file "bar" to "bar". Instead, find's -execdir and -depth arguments need to be used, to set a variable to the filename, and rename files within the directory before we rename the directory. It has to be -execdir and won't work with just -exec - that would try to rename "foo bar/baz quux" to "foo_bar/baz_quux" in one step, rather than going into "foo bar/", changing "baz quux" to "baz_quux", then stepping out and changing "foo bar/" into "foo_bar/". To rename just files, or just directories, you can put "-type f" or "-type d" after the "-depth" param. You could probably safely replace the "mv" part of the line with a "rename" command, like rename 'y/ /_/' *, but I haven't tried, since that's way less portable.

List all authors of a particular git project

This should work even if the output format changes.

dump a remote db via ssh and populate local db with postgres

Rename files in batch

Don't like the cut command? Tired of typing awk '{print $xxx}', try this

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Commands using sudo (537)

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