Commands using sudo sorted by votes

Commands using sudo (537)

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Check if TCP port 25 is open
This is sample output - yours may be different.
0

sudo lsof -iTCP:25 -sTCP:LISTEN

pdxdoughnut · 2013-11-12 17:32:34 6
Remove all unused kernels with apt-get
This is sample output - yours may be different.
0

% sudo yum remove streams-$(uname-r)

totalnut151 · 2013-11-21 17:41:19 6
dpkg - undo selection of installed packages for deinstall

If you run dpkg --clear-selections or have otherwise selected installed packages for deinstall, but want to undo it, run this. It will set all installed packages back to installed status so that they won't be removed by commands like "dpkg -Pa"
This is sample output - yours may be different.
0

dpkg -l | grep ^ri | awk '{print $2 " install"}' | sudo dpkg --set-selections

ajmccluskey · 2013-11-23 06:41:18 14
Kill all processes found in grep

Kills all processes with a certain string. This was done to kill all ssh sessions openned by zenoss which look like: usr/bin/ssh /opt/zenoss/bin/zenmodeler
This is sample output - yours may be different.
0

for line in `ps aux | grep <string> | awk '{print $2}'`; do sudo kill $line; done;

mjbrune · 2013-11-24 00:02:16 17
Change user's password
This is sample output - yours may be different.
0

sudo passwd <username>

dsetton · 2014-02-01 19:46:40 6
Berechtigungen nach einer Referenz ?ndern
This is sample output - yours may be different.
0

sudo chmod --reference=Referenz.foo Datei.foo

mischka · 2014-02-11 09:29:48 6
Create a nifty overview of the hardware in your computer

entering this command as root may give more complete results, creating a tmp file, and immediately opening the file might be more useful
This is sample output - yours may be different.
0

sudo lshw -html > /tmp/hardware.html && xdg-open /tmp/hardware.html

Sadi · 2014-03-08 10:40:21 7
Route some ips (or domain names) over VPN

In this example, 192.168.12.50 is the host that should be routed via the VPN and "ppp0" is the name of the VPN network interface (ifconfig shows you the list of network interfaces). Can be a IP or domain name. Show Sample Output
This is sample output - yours may be different.
```
add host 192.168.12.50: gateway ppp0
```
0

sudo /sbin/route add -host 192.168.12.50 -interface ppp0

jifilis · 2014-04-13 00:17:53 7
Create new user with sudo rights with home dir, bash shell
This is sample output - yours may be different.
0

export NEWUSER=newuser; mkdir /home/$NEWUSER; useradd -d /home/$NEWUSER -s /bin/bash -G sudo $NEWUSER; passwd $NEWUSER

vinaut79 · 2014-05-16 10:35:57 8
Synchronize date and time with a server
This is sample output - yours may be different.
0

sudo ntpdate serverip

Mahesh · 2014-05-26 04:49:29 7
Reboot to Windows (UEFI)

Quickly reboot directly to Windows (or any other operating system) without the need to enter BIOS/UEFI or boot loader (if any). It's valid for one boot only, no persistent changes to boot priorities.
This is sample output - yours may be different.
0

sudo efibootmgr --bootnext `efibootmgr | sed -n "s/^Boot$[0-9]\{4\}$\* Windows Boot Manager$/\1/p"` && reboot

moneytoo · 2014-05-31 11:51:52 7
Kill the X Server

There are times when a X Window server hangs. When this happens, you can log in on a terminal and kill the Xorg process (i.e. the X Server). This one line command will do the trick.
This is sample output - yours may be different.
0

sudo kill -9 $( ps -e | grep Xorg | awk '{ print $1 }' )

jeffskinnerbox · 2014-06-01 22:43:32 7
MAMP: "Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)" solution
This is sample output - yours may be different.
0

sudo ln -s /Applications/MAMP/tmp/mysql/mysql.sock /tmp/mysql.sock

99RedBalloons · 2014-07-02 07:24:19 7
Change directories using sudo

Change current working directory with root permissions. Place this snippet in your .bashrc to add a new "sudocd" command: function sudocd { sudo bash -c "cd $1;bash" } Usage: sudocd DIRECTORY Please note that if you will use this command to cd into directories with the permissions allowing only root to be in them, you will have to use sudo as a prefix to every command that changes/does something in that directory (yes, even ls).
This is sample output - yours may be different.
0

sudo bash -c "cd /PATH/TO/THE/DIRECTORY;bash"

Zath · 2014-07-28 20:20:04 35
dpkg: purge all packages matching some name

Recently in Debian Wheezy the dpkg command refuses to work with wildcards, so this is the one-liner alternative.
This is sample output - yours may be different.
0

sudo dpkg -P $(sudo dpkg -l yourPkgName* | awk '$2 ~ /yourPkgName.*/' | awk '$1 ~ /.i/' | awk '{print $2}')

woohoo · 2014-08-02 18:14:02 9
restart session
This is sample output - yours may be different.
0

sudo restart lightdm

sentenza · 2014-08-06 21:23:24 7
dpkg: purge all packages matching some name

Recently in Debian Wheezy the dpkg command refuses to work with wildcards, so this is the one-liner alternative. (alternative to #13614)
This is sample output - yours may be different.
0

sudo dpkg -P $(dpkg -l yourPkgName* | awk '$2 ~ /yourPkgName.*/ && $1 ~ /.i/ {print $2}')

wejn · 2014-08-06 22:40:32 9
Twitter the geek way

Rainbow Stream is a smart and nice Twitter client on terminal. Almost everything you can do with a GUI application can be done, even viewing an image. - Tab-autocomplete, history browsing - Beautiful built-in themes and custom configuration support - Tweet's images directly on your terminal. Show Sample Output
This is sample output - yours may be different.
```
     _ _            _ _____  _____
    | | |          | |  _  ||  _  |
  __| | |___   ____| |\ V /  \ V /
 / _` | __\ \ / / _` |/ _ \  / _ \
| (_| | |_ \ V / (_| | |_| || |_| |
 \__,_|\__| \_/ \__,_\_____/\_____/



Need tips ? Type "h" and hit Enter key!
[@dtvd88]:
```
0

sudo pip install rainbowstream && rainbowstream -iot

DTVD · 2014-08-20 06:45:16 8
Null a file with sudo
This is sample output - yours may be different.
0

sudo tee /path/to/file < /dev/null

Panovski · 2014-10-02 20:08:42 8
Set APM_level for HDD to prevent frequent parking
This is sample output - yours may be different.
0

sudo hdparm -B 200 /dev/sda

13_rom · 2014-10-16 13:01:13 8
mac address change
This is sample output - yours may be different.
0

sudo ifconfig mlan0 down; sudo ifconfig mlan0 hw ether 00:10:10:10:08:88; sudo ifconfig mlan0 up;

lainfinity · 2014-11-03 10:01:41 8
check the status of 'dd' in progress (OS X)

display dd status on OSX (coreutils) every 10 seconds Show Sample Output
This is sample output - yours may be different.
```
664+0 records in
664+0 records out
696254464 bytes (696 MB) copied, 426.767 s, 1.6 MB/s
```
0

watch -n 10 sudo kill -INFO $(pgrep -l '^dd$' | cut -d ' ' -f 1)

nfarrar · 2014-11-23 21:21:08 7
Look for the process bound to a certain port
This is sample output - yours may be different.
0

sudo netstat -tulpn | grep :8080

zluyuer · 2014-12-04 06:11:09 9
Look for the process bound to a certain port

grep : This shows the process running on that specific port.
This is sample output - yours may be different.
0

sudo lsof -i | grep :8080

cptjack · 2014-12-15 10:08:31 8

Show apps that use internet connection at the moment.

Show top apps that use internet, sorted by count connections and grouped by TYPE and Protocol Show Sample Output

sudo lsof -P -i -n | awk '{print $1,$5,$8}' | tail -n +2 | uniq -c | sort -nr

anton_slim · 2014-12-18 05:22:33 9

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Batch Convert SVG to PNG (in parallel)

Convert some SVG files into PNG using ImageMagick's convert command. Run the conversions in parallel to save time. This is safer than robinro's forkbomb approach :-) xargs runs four processes at a time -P4

Sets shell timeout

Useful in root's .profile - will auto-logout after TMOUT seconds of inactivity. Close after `seconds` inactive. export TMOUT=seconds (unefunge)

run last command with root

you will be sad after you run a command and find out it needs root, so you should run it again but with prefix sudo. so this line is to make it simple. just 'sudo !!'

Reboot as a different OS in Grub

This will reboot as the Grub 2 option.

Print every Nth line

Sometimes commands give you too much feedback. Perhaps 1/100th might be enough. If so, every() is for you. $ my_verbose_command | every 100 will print every 100th line of output. Specifically, it will print lines 100, 200, 300, etc If you use a negative argument it will print the *first* of a block, $ my_verbose_command | every -100 It will print lines 1, 101, 201, 301, etc The function wraps up this useful sed snippet: $ ... | sed -n '0~100p' don't print anything by default $ sed -n starting at line 0, then every hundred lines ( ~100 ) print. $ '0~100p' There's also some bash magic to test if the number is negative: we want character 0, length 1, of variable N. $ ${N:0:1} If it *is* negative, strip off the first character ${N:1} is character 1 onwards (second actual character).

worse alternative to

worse alternative to ctrl+r: grep the history removing duplicates without sorting (case insensitive search).

Remove newlines from output

Remove newlines from output. One character shorter than awk /./ filename and doesn't use a superfluous cat. To be fair though, I'm pretty sure fraktil was thinking being able to nuke newlines from any command is much more useful than just from one file.

Realtime lines per second in a log file, with history

This is similar to standard `pv`, but it retains the rate history instead of only showing the current rate. This is useful for spotting changes. To do this, -f is used to force pv to output, and stderr is redirected to stdout so that `tr` can swap the carriage returns for new lines. (doesn't work correctly is in zsh for some reason. Tail's output isn't redirected to /dev/null like it is in bash. anyone know why? ???????)

Generate a random password 30 characters long

This command is similar to the alternate, except with head(1), you can pick as many passwords as you wish to generate by changing the number of lines you wish to preview.

Print macOS current power delivery max wattage

Print the max wattage of the current power draw source for a Mac. Note that the current amount of watts drawn may be lower, particularly if a high-wattage adapter is plugged into a Mac that has a full battery.

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Commands using sudo (537)

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