Commands using sudo sorted by votes

Commands using sudo (537)

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Show live HTTP requests being made on OS X

Replace "en1" with your network interface (on OS X, usually en0, en1, eth0, etc..) Show Sample Output
This is sample output - yours may be different.
```
GET /services/rest/news/new/?stamp=1238809183049 HTTP/1.1
Host: www.qbn.com
GET / HTTP/1.1
Host: news.bbc.co.uk
GET /services/rest/news/new/?stamp=1238809185049 HTTP/1.1
Host: www.qbn.com
```
-2

sudo tcpdump -i en1 -n -s 0 -w - | grep -a -o -E "Host\: .*|GET \/.*"

peterc · 2009-04-04 01:41:48 8
Shred an complete disk, by overwritting its content 10 times

Shred can be used to shred a given partition or an complete disk. This should insure that not data is left on your disk
This is sample output - yours may be different.
-2

sudo shred -zn10 /dev/sda

dcabanis · 2009-04-30 13:02:43 8
Get ethX mac addresses

Show Sample Output
This is sample output - yours may be different.
```
00:1e:68:1a:88:69
```
-2

sudo ifconfig -a | grep eth | grep HW | cut -d' ' -f11

rubenmoran · 2009-11-04 19:24:35 3
umount all nfs mounts on machine
This is sample output - yours may be different.
-2

mount | awk '/:/ { print $3 } ' | xargs sudo umount

uid0 · 2009-11-05 17:19:11 3
Mount a Windows share on the local network (Ubuntu)

Mount a Windows share. Usually the IP is needed for the $ip_or_host option. Getting hostnames working on a local network never seems to work.
This is sample output - yours may be different.
-2

sudo mount -t cifs //$ip_or_host/$sharename /mnt

sb · 2009-11-23 14:24:02 3
Mount a Windows share on the local network (Ubuntu) with user rights and use a specific samba user

mounts a samba share on a remote machine using a credentials file that can be in a file tht is not accessable by other users the file will look like: username="username" password="password" best option i belive
This is sample output - yours may be different.
-2

sudo mount -t cifs -o credentials=/path/to/credenials //hostname/sharename /mount/point

magma_camel · 2009-11-23 23:55:20 3
Open file with sudo when there is no write-permission

this avoids several VIM warnings, which I seem too stupid to disable: warning, readonly! and: file and buffer have changed, reload?!
This is sample output - yours may be different.
-2

if test -w $1; then vim $1; else sudo vim $1; fi

srepmub · 2010-08-14 13:28:32 4
Bulk install

I used this to mass install a lot of perl stuff. Threw it together because I was feeling *especially* lazy. The 'perl' and the 'module' can be replaced with whatever you like.
This is sample output - yours may be different.
-2

apt-cache search perl | grep module | awk '{print $1;}' | xargs sudo apt-get install -y

captwheeto · 2010-11-26 14:00:39 3
Changing Hostname on Mac OS X
This is sample output - yours may be different.
-2

sudo scutil --set HostName MY_NEW_HOSTNAME

ohe · 2011-03-15 21:45:14 3
shutdown pc in a 4 hours

Benefit is that it doesn't make you keep the terminal open.
This is sample output - yours may be different.
-2

echo "shutdown -h now" | sudo at now + 4 hours

depesz · 2011-05-02 15:29:48 3
Fix grub2 boot failure using live cd

From live CD mount(open) the Ubuntu installed drive. Copy the location (press Ctrl+l, Ctrl+c ) eg: /media/ubuntuuuu Open terminal (Apllication->accessories->terminal) Type this: sudo grub-install --root-directory=/media/ubuntuuuu /dev/sda (replace /media/ubuntuuuu with what u got (ie paste)) Will show success message. Now reboot
This is sample output - yours may be different.
-2

sudo grub-install --root-directory=/media/ubuntu /dev/sda

totti · 2011-09-27 17:51:56 3
don't auto run gdm

run `sudo update-rc.d gdm defaults` to get it back
This is sample output - yours may be different.
-2

sudo update-rc.d -f gdm remove

kev · 2011-12-16 10:12:21 3
open ports with iptables

This command will open tcp port 3000 in your machine
This is sample output - yours may be different.
-2

sudo iptables -I INPUT -p tcp --dport 3000 -j ACCEPT

Dhinesh · 2011-12-16 10:39:13 30
I am using a desktop?
This is sample output - yours may be different.
-2

sudo hal-get-property --udi /org/freedesktop/Hal/devices/computer --key 'system.formfactor'

0disse0 · 2012-02-06 19:44:44 3
Add a custom package repository to apt sources.list

For instance, to add mongodb 10gen package echo "deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen" | sudo tee -a /etc/apt/sources.list Show Sample Output
This is sample output - yours may be different.
```
[some repository]
```
-2

echo "[some repository]" | sudo tee -a /etc/apt/sources.list

jjperezaguinaga · 2012-04-21 17:54:08 5
find files owned by root and make them your own again

be careful where you execute this from do a 'sudo ls' beforehand to prime sudo to not ask for your password
This is sample output - yours may be different.
-2

find . -user root | xargs sudo chown me:me

riansanderson · 2012-04-24 18:29:13 6
Check if TCP port 25 is open
This is sample output - yours may be different.
-2

sudo lsof -iTCP:25

netaxiz · 2013-11-20 08:26:37 9
List ReverseSSH ports

gets network ports only ones for the sshd service only logged in a specific user (changed for public posting) only in a specific localhost:port range not IPv6 Only the part of the response after the ":" character Only the part of the response before the 1st space Output is just the rssh port
This is sample output - yours may be different.
-2

sudo lsof -i -n | grep sshd | grep sshuser | grep :[PORT-RANGE] | grep -v IPv6 | awk -F\: '{print $2}' | grep -v http | awk -F" " '{print $1}'

das_shark · 2015-04-09 15:41:11 24
how to Disable a guest user from the login panel Xubuntu

This command will disable a guest user logon, this user don't have password to login in the system. Show Sample Output
This is sample output - yours may be different.
```
sh -c 'printf "[SeatDefaults]\nallow-guest=false\n" >/usr/share/lightdm/lightdm.conf.d/50-no-guest.conf'
sh -c 'printf "[SeatDefaults]\nallow-guest=false\n" >/usr/share/lightdm/lightdm.conf.d/50-guest-wrapper.conf'
```
-2

sudo sh -c 'printf "[SeatDefaults]\nallow-guest=false\n" >/usr/share/lightdm/lightdm.conf.d/50-no-guest.conf'; sudo sh -c 'printf "[SeatDefaults]\nallow-guest=false\n" >/usr/share/lightdm/lightdm.conf.d/50-guest-wrapper.conf'

andregyn62 · 2015-08-31 18:12:21 12
hardcode dnsserver, no more rewriting of etc/resolv.conf

runs in background rewriting /etc/resolv.conf periodically dns
This is sample output - yours may be different.
-2

while sudo sed -i -e 's/^$nameserver$.*$/\1 $dns/' /etc/resolv.conf; do sleep 15; done &

dav23r · 2018-05-14 16:03:08 161
restart Bluetooth from terminal
This is sample output - yours may be different.
-2

$ sudo systemctl restart bluetooth

jadnb · 2019-09-23 19:18:56 118
QEMU From Fedora Livecd + Device CD + Device Disk + UEFI + 800x600 forced

Entire command: sudo qemu-system-x86_64 -enable-kvm -cpu host -M q35 -m 2G -smp 4 --bios /usr/share/edk2/ovmf/OVMF_CODE.fd -drive id=cdrom,file=/dev/sr1,if=none,media=cdrom,format=raw,readonly=on -drive id=disk,file=/dev/md126,if=none,format=raw -device virtio-blk-pci,drive=cdrom -device virtio-blk-pci,drive=disk -device VGA,vgamem_mb=64,xres=800,yres=600
This is sample output - yours may be different.
-2

sudo qemu-system-x86_64 ...

pqatsi · 2022-09-02 20:07:02 503
Enable Hibernate in OS X
This is sample output - yours may be different.
-3

sudo pmset -a hibernatemode 1

therod · 2009-04-28 19:53:57 5
Save iptables firewall info

Stores the currently active iptables rules to a file that will be applied upon reboot
This is sample output - yours may be different.
-3

sudo iptables-save > /etc/iptables.up.rules

kamiller · 2009-08-19 14:55:05 4
Mount an external FAT32 USB HDD
This is sample output - yours may be different.
-3

sudo mount -t vfat /dev/sdb1 /mnt/sdb1

steffoz · 2009-10-25 19:56:06 4
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Encrypted archive with openssl and tar

Create an AES256 encrypted and compressed tar archive. User is prompted to enter the password. Decrypt with: $ openssl enc -d -aes256 -in | tar --extract --file - --gzip

Link a deep tree of files all into on directory

If you want to pull all of the files from a tree that has mixed files and directories containing files, this will link them all into a single directory. Beware of filesystem files-per-directory limits.

List all groups and the user names that were in each group

"cut" the user names from /etc/passwd and then running a loop over them.

Silently ensures that a FS is mounted on the given mount point (checks if it's OK, otherwise unmount, create dir and mount)

In my example, the mount point is /media/mpdr1 and the FS is /dev/sdd1 /mountpoint-path = /media/mpdr1 filesystem=/dev/sdd1 Why this command ? Well, in fact, with some external devices I used to face some issues : during data transfer from the device to the internal drive, some errors occurred and the device was unmounted and remounted again in a different folder. In such situations, the command mountpoint gave a positive result even if the FS wasn't properly mounted, that's why I added the df part. And if the device is not properly mounted, the command tries to unmount, to create the folder (if it exists already it will also work) and finally mount the FS on the given mount point.

Video Google download

Download google video with wget. Or, if you wish, pass video URL to ie mplayer to view as stream. 1. VURL: replace with url. I.e. http://video.google.com/videoplay?docid=12312312312312313# 2. OUPUT_FILE : optionally change to a more suited name. This is the downloaded file. I.e. foo.flv # Improvements greatly appreciated. (close to my first linux command after ls -A :) ) Breakedown pipe by pipe: 1. wget: html from google, pass to stdout 2. grep: get the video url until thumbnailUrl (not needed) 3. grep: Strip off everything before http:// 4. sed: urldecode 5. echo: hex escapes 6. sed: stipr of tailing before thumbnailUrl 7. wget: download. Here one could use i.e. mplayer or other...

Convert CSV to JSON

Replace 'csv_file.csv' with your filename.

Rename files in batch

Text graphing ping output filter

Nasty perl one-liner that provides a sparkline of ping times. If you want a different history than the last 30, just put that value in. It (ab)uses unicode to draw the bars, inspired by https://github.com/joemiller/spark-ping . It's not the most bug-free piece of code, but what it lacks in robustness it makes up for in capability. :) If anyone has any ideas on how to make it more compact or better, I'd love to hear them. I included a ping to google in the command just as an example (and burned up 10 chars doing it!). You should use it with: $ ping example.com | $SPARKLINE_PING_COMMAND

Burn CD/DVD from an iso, eject disc when finished.

cdrecord -scanbus will tell you the (x,y,z) value of your cdr (for example, mine is 3,0,0)

Convert CSV to JSON

Replace 'csv_file.csv' with your filename.

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Commands using sudo (537)

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