Commands using awk sorted by votes

Commands using awk (1,418)

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Print the 16 most recent RPM packages installed in newest to oldest order

Display a list of the 16 most recently installed RPM packages with newest first. Show Sample Output

rpm -qa --queryformat '%{INSTALLTIME} %{name}-%{version}-%{release}\n' | sort -k 1,1 -rn | nl | head -16 | awk '{printf("%3d %s %s\n", $1,strftime("%c",$2),$3)}'

mpb · 2018-09-12 17:47:26 324

Toggle the Touchpad on or off
This is sample output - yours may be different.
0

tp=$(synclient -l | grep TouchpadOff | awk '{ print $3 }') && tp=$((tp==0)) && synclient TouchpadOff=$tp

jny · 2018-10-09 07:42:32 365
Identifies the file types in a directory and adds or replaces their file extensions.

It tries to identify the file types in a directory and adds or replaces them with their appropriate extensions. Please, update the "file" tool before use it (last version: 5.37): https://github.com/file/file
This is sample output - yours may be different.
0

find "$(realpath .)" -type f -exec bash -c 'p="{}"; b="${p##*/}"; e=${b#"${b%.*}"}; e2=$(file -b -F="" --extension "$p"| awk -F/ '\''$1~/^\w+$/ {print $1} '\''); if [ "$e" != ".$e2" ] && [ ! -z $e2 ]; then mv "$p" "${p%$b}${b%$e}.$e2"; fi;' \;

mikhail · 2019-05-18 01:56:25 40
Define a word from Linux Terminal

The link gets the definition from vocabulary.com. In case you are behind firewall, use --proxy URL in the curl option. Show Sample Output
This is sample output - yours may be different.
```
A welcome is a greeting that usually comes when you first arrive. Although you aren;t fond of Aunt Martha, you always manage to give her a warm welcome when she comes to visit.
```
0

function define() { curl -s https://www.vocabulary.com/dictionary/$1 | grep 'og:description' | sed 's/&#[0-9][0-9][0-9]//g' | awk -F "\"" '{print $4}' }; define welcome

snehanshu11 · 2019-06-11 11:57:15 43
Autocomplete directories (CWDs) of other ZSH processes (MacOS version)

MacOS Solution due to lack of pidof command and procfs on MacOS Kernel. Show Sample Output
This is sample output - yours may be different.
```
[ name@host ~/scripts ]$ xcd <TAB>
/Users/name/scripts              /Users/name/scripts/Boltdir
/usr/local/bin                   /var/log/
```
0

function _xterm_cwds() { for pid in $(pgrep -x zsh); do reply+=$(lsof -p $pid | grep cwd | awk '{print $9}') done }; function xcd() { cd $1 }; compctl -K _xterm_cwds xcd

cdiehl · 2019-06-15 02:26:11 35
find all files that have 20 or more MB on every filesystem, change the size and filesystem to your liking

find all files that have 20 or more MB on every filesystem, change the size and filesystem to your liking
This is sample output - yours may be different.
0

find / -type f -size +20000k -exec ls -lh {} \; 2> /dev/null | awk '{ print $NF ": " $5 }' | sort -nrk 2,2

Marius · 2019-07-08 21:04:09 37
Print hugepage consumption of each process

The sample output is from an Android Device Show Sample Output
This is sample output - yours may be different.
```
/vendor/bin/hw/qcrild-c2 smaps:AnonHugePages:      2048 kB

/vendor/bin/imsdatadaemon smaps:AnonHugePages:      4096 kB

/vendor/bin/imsdatadaemon smaps:AnonHugePages:      2048 kB
```
0

grep -e AnonHugePages /proc/*/smaps | awk '{ if($2>4) print $0} ' | awk -F "/" '{system("cat /proc/" $3 "/cmdline");printf("\n");print $0; printf("\n");}'

praton · 2020-01-14 07:50:44 97
Check if the same table name exist across different databases

Useful command for MySQL Show Sample Output
This is sample output - yours may be different.
```
Count of databases for e.g. 3
```
0

find . -name "withdrownblocks.frm" | sort -u | awk -F'/' '{print $3}' | wc -l

shantanuo · 2020-02-09 07:22:42 86
Change values from 0 to 100
This is sample output - yours may be different.
0

awk '{if ($3 =="LAN" && $5 == "0.00" ) print $1, $2, "LAN", "288", "100.00"; else print $1 ,$2, $3, $4, $5 }' sla-avail-2013-Feb > sla-avail-2013-Feb_final

shantanuo · 2020-02-15 10:37:44 75

List SAN domains for a certificate

List SAN Domains for a certificate Show Sample Output

echo | openssl s_client -connect google.com:443 2>&1 | openssl x509 -noout -text | awk -F, -v OFS="\n" '/DNS:/{x=gsub(/ *DNS:/, ""); $1=$1; print $0}'

shadyabhi · 2020-04-10 06:56:51 88

Login history Mac OS X

2d - is a shortcut for a period back in time Show Sample Output
This is sample output - yours may be different.
```
2020-05-28 21:49:37.140751+0200
2020-05-28 23:15:00.242348+0200
2020-05-29 11:20:36.974778+0200
2020-05-29 13:59:04.477616+0200
2020-05-29 15:11:21.299773+0200
2020-05-29 17:55:59.941100+0200
2020-05-30 09:12:55.268262+0200
```
0

% sudo log show --style syslog --last 2d | awk '/Enter/ && /unlockUIBecomesActive/ {print $1 " " $2}'

Repie · 2020-05-30 07:27:17 106
Observing the difference between kernel configs after make config was executed to see if anything was changed from last kernel config (Gentoo)

Alternatively, the kernel provides a script to cleanly compare two config files even if the options have moved in the file itself: /usr/src/linux/scripts/diffconfig .config.old .config
This is sample output - yours may be different.
0

diff <(sort .config) <(sort .config.old) | awk '/^>.*(=|Linux)/ { $1=""; print }'

wuseman1 · 2022-01-24 16:57:35 563
Quickly add a new user to all groups the default user is in

an alternative to this one with only 2 processes https://www.commandlinefu.com/commands/view/25844/quickly-add-a-new-user-to-all-groups-the-default-user-is-in
This is sample output - yours may be different.
0

awk -F: '/^.+user1/{print $1}' /etc/group | xargs -n1 sudo adduser user2

ichbins · 2022-03-18 11:32:47 394
MySQL: Filter out specific tables from an existing mysqldump file with awk

This command works only if the line "DROP TABLE IF EXISTS" exists for all tables in the mysqldump file. It acts like a state machine.
This is sample output - yours may be different.
0

cat db_dump.sql | awk '/DROP TABLE IF EXISTS/ { skip = $5 ~ /table1|table2/ } !skip { print $0 }' > db_dump_filtered.sql

stf42 · 2022-10-30 16:58:57 800
Extract raw URLs from a file
This is sample output - yours may be different.
-1

egrep -ie "<*HREF=(.*?)>" index.html | awk -F\" '{print $2}' | grep ://

wwest4 · 2009-02-05 17:51:14 22
find and kill a zombie process

You cannot kill zombies, as they are already dead. But if you have too many zombies then kill parent process or restart service. You can kill zombie process using PID obtained from the above command. For example kill zombie proces having PID 4104: # kill -9 4104 Please note that kill -9 does not guarantee to kill a zombie process.
This is sample output - yours may be different.
-1

kill -HUP `ps -A -ostat,ppid,pid,cmd | grep -e '^[Zz]' | awk '{print $2}'`

6peng · 2009-02-06 02:42:14 15
SVN Add Recursively

This adds all new files to SVN recursively. It doesn't work for files that have spaces in their name, but why would you create a file with a space in its name in the first place?
This is sample output - yours may be different.
-1

svn status | grep "^\?" | awk '{print $2}' | xargs svn add

unixfu73000 · 2009-03-12 15:06:12 8
List nearbies
This is sample output - yours may be different.
-1

/usr/sbin/arp -i eth0 | awk '{print $3}' | sed 1d

prayer · 2009-03-24 18:53:26 8

retrieve GMT time from websites ( generally accruate )

w3m is a commanline web browser, full of options, I used -dump_head for less unnecessary page download. With awk, I can retrieve dynamic changes in webpages in this very econnomical fashion Show Sample Output

-1

w3m -dump_head www.fiat.com | awk '/Date+/{print $6, $7}'

m33600 · 2009-06-08 00:06:01 7

Sort a character string

using awk missed the last char thanks @Josay Show Sample Output
This is sample output - yours may be different.
```
aeeelmoprsst
```
-1

echo sortmeplease | awk '{l=split($1,a,"");asort(a);while(x<=l){printf "%s",a[x];x++ }print "";}'

foob4r · 2009-09-03 10:22:39 4
Edit all files found having a specific string found by grep

needs no GNU tools, as far as I see it
This is sample output - yours may be different.
-1

find . -exec grep foobar /dev/null {} \; | awk -F: '{print $1}' | xargs vi

verboEse · 2009-09-03 16:02:18 3
Make a statistic about the lines of code

Have wc work on each file then add up the total with awk; get a 43% speed increase on RHEL over using "-exec cat|wc -l" and a 67% increase on my Ubuntu laptop (this is with 10MB of data in 767 files).
This is sample output - yours may be different.
-1

find . -type f -name '*.c' -exec wc -l {} \; | awk '{sum+=$1} END {print sum}'

arcege · 2009-09-04 15:51:30 6
Show apps that use internet connection at the moment.

Can be used to discover what programms create internet traffic. Skip the part after awk to get more details. Has anyone an idea why the uniq doesn't work propperly here (see sample output)? Show Sample Output
This is sample output - yours may be different.
```
java          
pidgin         
pidgin         
pidgin         
pidgin         
pidgin         
thunderbird-b 
thunderbird-b 
thunderbird-b 
thunderbird-b 
```
-1

netstat -lantp | grep -i establ | awk -F/ '{print $2}' | uniq | sort

ktoso · 2009-09-19 13:54:36 7
Email if you disk is over 90%

Email if you disk is over 90% - www.fir3net.com
This is sample output - yours may be different.
-1

HDD=$(df | awk ' NR>3 (S=$5) (M=$6) { if (S>90) print "Your Systems "M" is """S" Full" } ') ; [[ $HDD ]] && echo "$HDD" | mail -s "Hard-Drives Full" TO@EMAIL.com -- -f FROM@EMAIL.com >/dev/null

felix001 · 2009-10-16 06:52:36 5
Show current folder permission from /, useful for debugging ssh key permission

Handled all within awk. Takes the value from $PWD and constructs directory structures and runs commands against them. The gsub() call is not necessary, but added for better visibility. If a variable DIR is given on the awk command-line, then that directory is used instead: awk -vDIR=$HOME/.ssh 'BEGIN{dir=DIR?...}' Show Sample Output
This is sample output - yours may be different.
```
drwxr-xr-x 22 root root 4096 2009-10-21 23:30 /
drwxr-xr-x 3 root root 4096 2009-10-20 13:33 /home
drwxr-xr-x 54 luser luser 4096 2009-10-22 09:48 /home/luser
```
-1

awk 'BEGIN{dir=DIR?DIR:ENVIRON["PWD"];l=split(dir,parts,"/");last="";for(i=1;i<l+1;i++){d=last"/"parts[i];gsub("//","/",d);system("ls -ld \""d"\"");last=d}}'

arcege · 2009-10-22 16:28:07 5
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trace http requests with tshark

trace http requests on the specified interface. uses the amazing tshark tool (http://www.wireshark.org/docs/man-pages/tshark.html)

FizzBuzz in one line of Bash

The (in)famous "FizzBuzz" programming challenge, answered in a single line of Bash code. The "|column" part at the end merely formats the output a bit, so if "column" is not installed on your machine you can simply omit that part. Without "|column", the solution only uses 75 characters. The version below is expanded to multiple lines, with comments added. for i in {1..100} # Use i to loop from "1" to "100", inclusive. do ((i % 3)) && # If i is not divisible by 3... x= || # ...blank out x (yes, "x= " does that). Otherwise,... x=Fizz # ...set x to the string "Fizz". ((i % 5)) || # If i is not divisible by 5, skip (there's no "&&")... x+=Buzz # ...Otherwise, append (not set) the string "Buzz" to x. echo ${x:-$i} # Print x unless it is blanked out. Otherwise, print i. done | column # Wrap output into columns (not part of the test).

bash alias for sdiff: differ

this is just okey

Undo

Ctrl+_

An alias to re-run last command with sudo. Similar to "sudo !!"

I didn't come up with this myself, but I always add this to my .bash_aliases file. It's essentially the same idea as running "sudo !!" except it's much easier to type. (You can't just alias "sudo !!", it doesn't really work for reasons I don't understand.) "fc" is a shell built-in for editing and re-running previous commands. The -l flag tells it to display the line rather than edit it, and the -n command tells it to omit the line number. -1 tells it to print the previous line. For more detail: $help fc

Make .bashrc function to backup the data you changed last houres

The original overwrites any previous backups, and only saves exactly the last hours worth, but not 1 hour + 1 minute. This version creates or appends files, and backs up everything since the last backup (using the backups timestamp as the reference), plus it uses TMPDIR if set.

Takes all file except file between !()

Go to tmp : cd /tmp; mkdir retmp; cd retmp Create 10 files : for i in {1..10}; do touch test$i; done Remove all files except test10 : rm !(test10)

Jump up to any directory above the current one

Usage: upto directory

List only directories, one per line

omit the 1 (one) if you don't need one-per-line

Save man pages to pdf

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Commands using awk (1,418)

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