Commands using sudo sorted by votes

Commands using sudo (537)

sorted by

Network Interfaces
This is sample output - yours may be different.
0

sudo ip addr show

olto · 2015-10-01 04:14:47 25
check the status of 'dd' in progress (OS X)

Observe the process of your dd command on Mac the Mac bash when you burn an .iso or .img on a SD-Card. This command avoids permission errors.
This is sample output - yours may be different.
0

while pgrep ^dd; do sudo pkill -INFO dd; sleep 20; done

kassnik · 2015-12-06 20:16:34 10
remove all development packages in ubuntu

its not the prettiest but it should do the job. This one liner removes all ubuntu packages whose name ends with *-dev
This is sample output - yours may be different.
0

sudo apt-get remove $(dpkg -l \*-dev | grep ^ii | sed 's/\-dev.*/-dev/' | sed -r 's/.{4}//')

tarfoh · 2015-12-11 14:02:31 12
Start a new shell as another user without know the password.

You must be root. It asks for your password. Alternative: sudo -i -u <user> If you are not root, but you know the password of the other user: su <user>
This is sample output - yours may be different.
0

sudo su <user>

rlebron · 2015-12-15 19:33:27 10
GRUB2: Set Imperial Death March as startup tune
This is sample output - yours may be different.
0

echo "GRUB_INIT_TUNE=\"480 440 4 440 4 440 4 349 3 523 1 440 4 349 3 523 1 440 8 659 4 659 4 659 4 698 3 523 1 415 4 349 3 523 1 440 8\"" | sudo tee -a /etc/default/grub > /dev/null && sudo update-grub

EvilSupahFly · 2015-12-22 06:22:30 9
Get list of all apache virtual hosts

list of all virtual hosts which are defined in all apache configuration files
This is sample output - yours may be different.
0

sudo httpd -S 2>&1 | grep 'port' | awk '{print $4,$2,$5}' | sort | column -t

gangs · 2016-01-06 12:04:47 11
Start mysql server on Mac

This is for the mysql binary that was installed using dmg file. Show Sample Output
This is sample output - yours may be different.
```
Empty Output
```
0

sudo /Library/StartupItems/MySQLCOM/MySQLCOM start

phoe6 · 2016-01-15 19:05:25 12
easily trace all Nginx processes

Nginx (and other webservers like Apache) can be awkward to trace. They run as root, then switch to another user once they're ready to serve web pages. They also have a "master" process and multiple worker processes. The given command finds the process IDs of all Nginx processes, joins them together with a comma, then traces all of them at once with "sudo strace." System trace output can be overwhelming, so we only capture "networking" output. TIP: to kill this complex strace, do "sudo killall strace". Compare with a similar command: http://www.commandlinefu.com/commands/view/11918/easily-strace-all-your-apache-processes Show Sample Output
This is sample output - yours may be different.
```
# grab an Nginx web page:
#     curl -so /dev/null localhost

[pid  1145] accept4(6, {sa_family=AF_INET, sin_port=htons(57358), sin_addr=inet_addr("127.0.0.1")}, [16], SOCK_NONBLOCK) = 10
[pid  1145] recvfrom(10, "GET / HTTP/1.1\r\nUser-Agent: curl"..., 1024, 0, NULL, NULL) = 73
[pid  1145] setsockopt(10, SOL_TCP, TCP_CORK, [1], 4) = 0
[pid  1145] sendfile(10, 11, [0], 612)  = 612
[pid  1145] setsockopt(10, SOL_TCP, TCP_CORK, [0], 4) = 0
[pid  1145] recvfrom(10, 0xa7e1c0, 1024, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable)
[pid  1145] recvfrom(10, "", 1024, 0, NULL, NULL) = 0
```
0

sudo strace -e trace=network -p `pidof nginx | sed -e 's/ /,/g'`

shavenwarthog · 2016-01-28 18:48:16 12
Make Ubuntu Phone root image read/write until reboot

Warning this will allow you to write to the system image on the phone, not recommended. But sometimes useful.
This is sample output - yours may be different.
0

sudo mount -o remount,rw /

bugmenot · 2016-02-07 17:57:19 13
Switch to rc-proposed channel on Ubuntu Phone - Nexus 4

Get the latest and hopefully greatest to test out on the Ubuntu Phone - sometimes broken but always interesting. https://developer.ubuntu.com/en/start/ubuntu-for-devices/image-channels/
This is sample output - yours may be different.
0

sudo system-image-cli --switch ubuntu-touch/rc-proposed/ubuntu --build 0

bugmenot · 2016-02-07 18:24:28 9
Block an IP address

Block given ip for X seconds and then automatically unban.
This is sample output - yours may be different.
0

IP=192.168.0.12 DELAY=15 bash -c 'sudo iptables -A INPUT -s ${IP:-badguy.localdomain} -j DROP && echo blocked "$IP" && sudo bash -c "sleep ${DELAY:-600}; iptables -D INPUT -s ${IP:-badguy.localdomain} -j DROP && echo unblocked $IP" 1>&1 & disown %1'

xadi · 2016-04-20 14:28:36 11
sync repository and do install
This is sample output - yours may be different.
0

sudo apt-fast update && sudo apt-fast -y dist-upgrade

zaqsedc · 2016-05-01 00:44:58 12
Get all ProcID's for a given process

If you have to stop a bunch of processes or just want to get a list of their ID's, us this replacing with your process. Then you can use a loop to kill -9 all of them. Show Sample Output
This is sample output - yours may be different.
```
777
917
918
1012
1013
1855
```
0

sudo <PROC_NAME> -aux |grep pals_ |tr -s " " |cut -d " " -f2

dskzz · 2016-06-05 02:14:10 12
dd with progress bar and statistics to gzipped image

Sets the size of the disk to $DISKSIZE so that the percentage readout of pv is correct. set /dev/sdb to whatever your disk is /dev/sdX. Next pipe dd to pv, then pipe pv to gzip so that you get a gzipped image file. Show Sample Output
This is sample output - yours may be different.
```
4.15GB 0:04:03 [20.1MB/s] [======>                                               ] 13% ETA 0:24:57
```
0

DISKSIZE=`sudo blockdev --getsize64 /dev/sdb` && sudo dd bs=4096 if=/dev/sdb | pv -s $DISKSIZE | sudo gzip -9 > ~/USBDRIVEBACKUP.img.gz

frame45 · 2016-08-31 00:03:56 14
progress bar while using dd

Gives a nice progress bar while writing an iso file to usb to create a mountable usb drive. file.iso represents the iso file /dev/sdX represents the usb to write to Show Sample Output
This is sample output - yours may be different.
```
36MiB 0:01:01 [6.07MiB/s] [                                    <=>           ]
```
0

sudo dd if=file.iso |pv| sudo dd of=/dev/sdX

vexator · 2016-09-04 20:37:23 13
Delete all php package
This is sample output - yours may be different.
0

sudo apt-get purge `dpkg -l | grep php| awk '{print $2}' |tr "\n" " "`

bDrwx · 2016-09-23 15:33:18 25
rescan SCSI bus
This is sample output - yours may be different.
0

sudo apt-get install scsitools && sudo rescan-scsi-bus

burn42 · 2016-11-07 20:59:38 28
List wireless clients connected to an access point
This is sample output - yours may be different.
0

sudo netdiscover -r 192.168.1.0/24 -i wlo1

ayoubensalem · 2017-01-26 23:35:54 18

adapt to your interface, subnet and subnet mask You may not have netdiscover installed by default, sudo apt-get install netdiscover Show Sample Output

sudo netdiscover -r 192.168.1.0/24 -iwlo1

ayoubensalem · 2017-01-27 14:09:26 18

Find all hidden files in a directory
This is sample output - yours may be different.
0

sudo find . -name '.*' $ -type d -exec find {} \; -prune -o -print $

buddacow · 2017-01-30 20:33:36 18
Clear DNS cache on a mac

This will clear Mac OS's DNS cache, which has been a source of issues for me in the past.
This is sample output - yours may be different.
0

sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder

abeardevil · 2017-02-24 18:34:49 17
Delete a certificate from the macOS security keychain

Use `security list-keychains` to find possible keychains, and `security dump-keychain` to look for certificates. `sudo security delete-certificate` without arguments shows options for removing: by common name or by SHA-1 hash. This is especially useful if a certificate locks up Keychain Access.app, which happens for certificates with many SANs in macOS 10.12. Found via: http://stackoverflow.com/a/16019443
This is sample output - yours may be different.
0

sudo security delete-certificate -c 1000-sans.badssl.com

lgarron · 2017-04-06 01:40:04 21
Disable man-db cron and apt trigger
This is sample output - yours may be different.
0

echo 'man-db man-db/auto-update boolean false' |sudo debconf-set-selections

ara4sh · 2017-04-15 11:02:11 19
Run the last command as root

Runs the last command as root. This works in bash too. Kind of bulky, but makes a great alias.
This is sample output - yours may be different.
0

sudo $(history -p !!)

keith · 2017-04-19 12:16:40 26
Clear disk space by retaining only currently running Docker containers and only currently required Docker images.

Useful if your Docker host starts running out of disk space due to Docker debris. You should start by running "sudo docker ps" in order to check that all required containers are in fact running, and fix any that aren't before proceeding to the main event! "sudo docker rm $(sudo docker ps -q -f status=exited)" removes all containers which are no longer running. "sudo docker rmi $(sudo docker images -q -f dangling=true)" removes all Docker images not required for currently running containers.
This is sample output - yours may be different.
0

sudo docker rm $(sudo docker ps -q -f status=exited); sudo docker rmi $(sudo docker images -q -f dangling=true)

Roundand · 2017-04-25 11:29:19 23
‹ First < 15 16 17 18 19 > Last ›

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands

Check These Out

Install pip with Proxy

Installs pip packages defining a proxy

list files recursively by size

convert ascii string to hex

You can use "decode()" in a similar manner: $ python -c 'print "68656c6c6f".decode("hex")'

rsync instead of scp

The command copies a file from remote SSH host on port 8322 with bandwidth limit 100KB/sec; --progress shows a progress bar --partial turns partial download on; thus, you can resume the process if something goes wrong --bwlimit limits bandwidth by specified KB/sec --ipv4 selects IPv4 as preferred I find it useful to create the following alias: alias myscp='rsync --progress --partial --rsh="ssh -p 8322" --bwlimit=100 --ipv4' in ~/.bash_aliases, ~/.bash_profile, ~/.bash_login or ~/.bashrc where appropriate.

list block devices

Shows all block devices in a tree with descruptions of what they are.

Show recent earthquakes in Bay Area

To see only earthquakes for today, add another pipe to egrep "`date '+%Y/%m/%d'`"

Ping all hosts on 192.168.1.0/24

Pings all the hosts on 192.168.1.0/24 in parallel, so it is very fast. Alive host IP addresses are echoed to stdout as pings are responded to.

Remove a range of lines from a file

Use file(1) to view device information

file(1) can print details about certain devices in the /dev/ directory (block devices in this example). This helped me to know at a glance the location and revision of my bootloader, UUIDs, filesystem status, which partitions were primaries / logicals, etc.. without running several commands. See also: $ file -s /dev/dm-* $ file -s /dev/cciss/* etc..

create a nicely formatted example of a shell command and its output

Shell function which takes a bash command as its input, and displays the following formatted output: EXAMPLE: command OUTPUT: output from command

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for:

» all commands
» commands with 3 up-votes (commandlinefu3)
» commands with 10 up-votes (commandlinefu10)
» commands using sudo

Commands using sudo (537) the last day the last week the last month all time sorted by date votes

What's this?

Check These Out

Stay in the loop…

Commands using sudo (537)

sorted by