Commands using awk sorted by votes

Commands using awk (1,418)

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Delete files sorted by dates. Delete all other files except latest N files.
This is sample output - yours may be different.
0

ls -lt | grep ^- | awk 'NR>=N {print $9}' | xargs rm -rf -i

clongbupt · 2015-02-10 06:29:24 8
Remove spaces

Remove all spaces from command's output
This is sample output - yours may be different.
0

command | awk '{gsub(" ", "", $0); print}'

wbcmac2000 · 2015-02-25 01:16:06 15
Linux: find names non non-virtual network interfaces

This is used to find externally accessible network interfaces; interfaces that others can connect to us with. By then finding the IP address of these interfaces, we can find addresses that other hosts would use in order to connect to us. Show Sample Output
This is sample output - yours may be different.
```
localhost core # ls -l /sys/class/net/ | grep /devices/ | grep -v /virtual/ | awk '{print $9}'
ens32
```
0

ls -l /sys/class/net/ | grep /devices/ | grep -v /virtual/ | awk '{print $9}'

marksheahan · 2015-02-26 18:46:07 8
Kill google chrome process

Kills all browser tabs, without killing browser or extensions.
This is sample output - yours may be different.
0

kill $(ps x | grep '\/chrome *.* --type=renderer ' | awk '{print $1}')

karma0 · 2015-03-01 16:28:14 8
Kill all salt running processes
This is sample output - yours may be different.
0

ps aux | grep salt | awk '{ print $2}' | xargs kill

mour · 2015-03-12 09:27:14 9
Print a cron formatted time for 2 minutes in the future (for crontab testing)

usage = crontest "/path/to/bin" This version of this function will echo back the entire command so it can be copied/pasted to crontab. Should be able to be automagically appended to crontab with a bit more work. Tested on bash and zsh on linux,freebsd,aix Show Sample Output
This is sample output - yours may be different.
```
49 15 12 03 *   /path/to/bin
```
0

crontest () { date +'%M %k %d %m *' |awk 'BEGIN {ORS="\t"} {print $1+2,$2,$3,$4,$5,$6}'; echo $1;}

CoolHand · 2015-03-12 19:56:56 11
Get name of running Window Manager
This is sample output - yours may be different.
0

wmctrl -m | grep Name: | awk '{print $2}'

naesk · 2015-03-13 18:28:12 9
Show sum of active sockets by process name or mask
This is sample output - yours may be different.
0

pgrep -lf processname | cut -d' ' -f1 | awk '{print "cat /proc/" $1 "/net/sockstat | head -n1"}' | sh | cut -d' ' -f3 | paste -sd+ | bc

MasterX2 · 2015-03-18 10:20:44 9
Find the next free user id in OS X

If you want to create new user accounts in OS X from the command line use this fragment to find the next free user id. In OS X CLI you have to assign the user id yourself Show Sample Output
This is sample output - yours may be different.
```
507
```
0

echo $((1+$( dscl . -list /Users UniqueID| awk '{print $2}' | sort -rn | head -1 )))

alecthegeek · 2015-04-04 01:39:46 9
Removing leading + sign from numbers

The leading plus sign is removed - Minus sign is left intact Show Sample Output
This is sample output - yours may be different.
```
-2
3
```
0

awk '{print $0+0}' <(echo -2; echo +3;)

unixmonkey88472 · 2015-04-08 09:19:24 13
Periodic Display of Fan Speed with Change Highlights

Replace grep | sed with single awk script.
This is sample output - yours may be different.
0

watch -n10 -d sh -c 'sensors | awk '\''/:.*RPM/ { sub("[^:]*:","") ; print $1 }'\'

my_username · 2015-04-29 16:50:28 10
Grep ip addresses from access attempts to a page and add them to an ipset referenced by an iptables rule
This is sample output - yours may be different.
0

grep page.php /var/log/httpd/access_log|awk '{print $1}'|sort|uniq|perl -e 'while (<STDIN>){chomp; $cmd=`ipset add banned -! -q $_`; }'

luchino7773 · 2015-05-13 07:08:59 10
easily strace all your apache processes
This is sample output - yours may be different.
0

pgrep -f /usr/sbin/httpd | awk '{print"-p " $1}' | xargs strace

savagemike · 2015-06-10 22:55:35 12
Calculate Duration Of Files In Directory

When you want to know the duration of all your mp3 files in the current working directory this command will tell you based on exif data. Since it relies on exif data it can be used against other files like movies, ogg vorbis etc. also. Useful when you want to know how long it will take to listen to an album or series of lectures. Show Sample Output
This is sample output - yours may be different.
```
3:15:29
```
0

exiftool * | grep '^Duration' | sed 's/^.*[[:space:]]$[0-9]*:[0-9]*:[0-9]*$.*$/\1/g' | awk -F':' '{ H+=$1;M+=$2;S+=$3 } END { printf "%d:%d:%d\n", int(H+int(M/60)),int(M+S/60)%60,S%60 }'

keyboardsage · 2015-06-17 06:20:47 9
Recursively remove directories less than specified size

Removes directories which are less than 1028KB total. This works for systems where blank directories are 4KB. If a directory contains 1 MB (1024KB) or less, it will remove the directory using a path relative to the directory where the command was initially executed (safer than some other options I found). Adjust the 1028 value for your needs. It would be helpful to test the results before proceeding with the removal. Simply run all but the last two commands to see a list of what will be removed: du | awk '{if($1<1028)print;}' | cut -d $'\t' -f 2- If you're unsure what size a blank folder is, test it like this: mkdir test; du test; rmdir test
This is sample output - yours may be different.
0

du | awk '{if($1<1028)print;}' | cut -d $'\t' -f 2- | tr "\n" "\0" | xargs -0 rm -rf

i814u2 · 2015-06-25 16:00:48 11

Highlight the plain text in XML (or HTML, SGML, etc)

Don't want to open up an editor just to view a bunch of XML files in an easy to read format? Now you can do it from the comfort of your own command line! :-) This creates a new function, xmlpager, which shows an XML file in its entirety, but with the actual content (non-tag text) highlighted. It does this by setting the foreground to color #4 (red) after every tag and resets it before the next tag. (Hint: try `tput bold` as an alternative). I use 'xmlindent' to neatly reflow and indent the text, but, of course, that's optional. If you don't have xmlindent, just replace it with 'cat'. Additionally, this example shows piping into the optional 'less' pager; note the -r option which allows raw escape codes to be passed to the terminal. Show Sample Output

xmlpager() { xmlindent "$@" | awk '{gsub(">",">'`tput setf 4`'"); gsub("<","'`tput sgr0`'<"); print;} END {print "'`tput sgr0`'"}' | less -r; }

hackerb9 · 2015-07-12 09:22:10 11

extract ip address from ifconfig using

merge ifconfig grep awk sed you need to change the interface of ifconfig where ip is up Show Sample Output
This is sample output - yours may be different.
```
                 <--------=   IP    =-------->
```
0

ifconfig wlan0 | grep "inet addr:" | awk '{print $2}' | sed -e 's/.*:/\n\n\n/g' | sed 's/$[0-9]\{1,3\}\.$\{3\}[0-9]\{1,3\}/\t\t\t<--------= & =-------->\n\n\n\n\n/g'

lb · 2015-07-13 05:37:31 9
Get user's full name in Mac OS X
This is sample output - yours may be different.
0

finger $(whoami) | awk '/Name:/ {print $4" "$5}'

AIR · 2015-07-14 02:31:48 9
Grep for pattern & get uniq filenames

Grep for string in all files in a folder, get only the names of the file, making the file list uniq, then assingning all the file names to a variable in awk & printing on STDOUT
This is sample output - yours may be different.
0

grep -nri "pattern_to_search" folder_name/ | awk -F ":" '{print $1}' | uniq | awk 'BEGIN {f=""} {f = f" "$0} END {print f}'

ashish2 · 2015-07-19 01:00:58 11
Continuously show wifi signal strength on a mac

Shows the WiFi signal strength without having to display thousands of lines Show Sample Output
This is sample output - yours may be different.
```
Wifi signal strength: -34
```
0

while i=1; do echo -ne 'Wifi signal strength:' $(/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport -I | grep CtlRSSI | awk {'print $2'}) '\r'; sleep 0.5; done

ackgrep · 2015-07-19 11:52:04 9
Get the user with the top number of logins

Get an approximation of who the workstation is assigned to. You can wrap it in su - "$()" if you want to log into a shell as that user. Show Sample Output
This is sample output - yours may be different.
```
frequentuser
```
0

last | grep -i console | grep -iv 'root' | cut -f 1 -d ' ' | sort | uniq -c | sort -nr | awk '{print $2}' | head -1

phyxia · 2015-07-20 18:07:40 10
Export all domains in bind format from AWS Route53
This is sample output - yours may be different.
0

eval `cli53 list |grep Name | sed "s/\.$//g" | awk '{printf("echo %s; cli53 export %s > %s;\n", $2, $2, $2);}'`

cfb · 2015-07-21 14:16:30 10
Docker: Remove all exited docker container
This is sample output - yours may be different.
0

docker ps -a | grep Exit | awk -F " " '{ print $1 }' | xargs docker rm {}

leoman730 · 2015-07-29 16:02:17 12
Docker: Remove all exited docker container
This is sample output - yours may be different.
0

docker ps -a | grep "Exited" | awk '{print $1}' | xargs docker rm

leoman730 · 2015-08-11 16:01:15 14
Download all pdf files off of a website using wget

Download all pdf files off of a website using wget. You can change the file type to download, changing the extension, as an example you can change pdf for txt in command. Show Sample Output
This is sample output - yours may be different.
```
wget http://webpage.com/p/ex1.pdf
wget http://webpage.com/p/ex2.pdf
wget http://webpage.com/p/ex3.pdf
```
0

lynx -dump -listonly http://webpage.com | awk '/pdf$/ { print "wget " $2}'| sort | uniq | sh

lopesivan · 2015-08-26 04:01:38 9
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Convert seconds to [DD:][HH:]MM:SS

Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

Encrypt every file in the current directory with 256-bit AES, retaining the original.

The password is stored in the password file, which obviously must be kept secure, encrypted later with gpg, deleted, or whatever you prefer. To decrypt: $ openssl enc -d -aes-256-cbc -salt -in filename.enc -out filename -pass file:/path/to/password-file Alternative ciphers can be used, of course.

Counting the source code's line numbers C/C++ Java

Count your source and header file's line numbers. This ignores blank lines, C++ style comments, single line C style comments. This will not ignore blank lines with tabs or multiline C style comments.

Download file with multiple simultaneous connections

`aria2c` (from the aria2 project) allows. Change -s 4 to an arbitrary number of segments to control the number of concurrent connections. It is also possible to provide multiple URLs to the same content (potentially over multiple protocols) to download the file concurrently from multiple hosts.

en/decrypts files in a specific directory

To decrypt the files replace "ccenrypt" with "ccdecrypt. ccrypt(1) must be installed. It uses the AES (Rijndael) block cipher. To make it handier create an alias.

NSA codename generator

nsacodenamegenerator dot com is no more outputs random two words together in capital letters

list files recursively by size

Give all those pictures the same name format, trailing zeros please for the right order, offset to merge different collections of pictures

When you have different digital cameras, different people, friends and you want to merge all those pictures together, then you get files with same names or files with 3 and 4 digit numbers etc. The result is a mess if you copy it together into one directory. But if you can add an offset to the picture number and set the number of leading zeros in the file name's number then you can manage. OFFS != 0 and LZ the same as the files currently have is not supported. Or left as an exercise, hoho ;) I love NF="${NF/#+(0)/}",it looks like a magic bash spell.

List files with full path

exclude file(s) from rsync

rsyncs files to a server excluding listed files also a file can be used to exclude common exclude rules and/or to exclude a ton of files, like so: $rsync --exclude-from '~/.scripts/exclude.txt' where exclude.txt has one rule per line: *.mp3 *.svn*

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Commands using awk (1,418)

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