Commands matching awk sorted by votes

Commands matching awk (1,537)

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Check the age of the filesystem

Very useful set of commands to know when your file system was created. Show Sample Output
This is sample output - yours may be different.
```
# df / | awk '{print $1}' | grep dev | xargs tune2fs -l | grep create
Filesystem created:       Fri Oct 24 03:46:36 2008
```
9

df / | awk '{print $1}' | grep dev | xargs tune2fs -l | grep create

Kaio · 2009-02-16 18:45:03 908
Click on a GUI window and show its process ID and command used to run the process

This command is useful when you want to know what process is responsible for a certain GUI application and what command you need to issue to launch it in terminal. Show Sample Output
This is sample output - yours may be different.
```
jack@jack-pc$ xprop | awk '/PID/ {print $3}' | xargs ps -p
 8025 /usr/lib/firefox-3.0.13/firefox
```
9

xprop | awk '/PID/ {print $3}' | xargs ps h -o pid,cmd

jackhab · 2009-02-16 07:55:19 83
nmap get all active online ips from specific network

scan whole specific network for active online ips Show Sample Output
This is sample output - yours may be different.
```
192.168.1.79
192.168.1.82
192.168.1.83
192.168.1.84
192.168.1.86
192.168.1.87
192.168.1.89
192.168.1.94
192.168.1.97
192.168.1.100
192.168.1.101
192.168.1.104
192.168.1.110
192.168.1.119
192.168.1.120
```
8

nmap -n -sn 192.168.1.0/24 -oG - | awk '/Up$/{print $2}'

aysadk · 2019-09-04 13:31:53 127
sum a column of numbers
This is sample output - yours may be different.
8

awk '{s+=$1}END{print s}' <file>

evandrix · 2013-01-10 03:16:48 4
Keep a copy of the raw Youtube FLV,MP4,etc stored in /tmp/

Certain Flash video players (e.g. Youtube) write their video streams to disk in /tmp/ , but the files are unlinked. i.e. the player creates the file and then immediately deletes the filename (unlinking files in this way makes it hard to find them, and/or ensures their cleanup if the browser or plugin should crash etc.) But as long as the flash plugin's process runs, a file descriptor remains in its /proc/ hierarchy, from which we (and the player) still have access to the file. The method above worked nicely for me when I had 50 tabs open with Youtube videos and didn't want to have to re-download them all with some tool.
This is sample output - yours may be different.
8

lsof -n -P|grep FlashXX|awk '{ print "/proc/" $2 "/fd/" substr($4, 1, length($4)-1) }'|while read f;do newname=$(exiftool -FileModifyDate -FileType -t -d %Y%m%d%H%M%S $f|cut -f2|tr '\n' '.'|sed 's/\.$//');echo "$f -> $newname";cp $f ~/Vids/$newname;done

mhs · 2012-02-25 01:49:45 5
Rank top 10 most frequently used commands
This is sample output - yours may be different.
8

history | awk '{print $2}' | sort | uniq -c | sort -rn | head

ken_fallon · 2012-01-05 22:23:25 4
Quick network status of machine

credit to tumblr engineering blog @ http://engineering.tumblr.com/ Show Sample Output
This is sample output - yours may be different.
```
 1618 ESTABLISHED
 4 LAST_ACK
 2 SYN_RECV
 1 TIME_WAIT
 1 CLOSE_WAIT
```
8

netstat -tn | awk 'NR>2 {print $6}' | sort | uniq -c | sort -rn

evandrix · 2011-09-12 23:29:39 13
Find default gateway
This is sample output - yours may be different.
8

ip route | awk '/default/{print $3}'

rthemocap · 2010-08-10 21:16:40 51
Print just line 4 from a textfile
This is sample output - yours may be different.
8

awk 'NR==4'

Aparicio · 2010-07-08 21:04:04 3
Remove all unused kernels with apt-get

This should do the same thing and is about 70 chars shorter. Show Sample Output
This is sample output - yours may be different.
```
The following packages will be REMOVED:
  linux-image-2.6.32-3-amd64 linux-image-amd64 
0 packages upgraded, 0 newly installed, 2 to remove and 0 not upgraded.
Need to get 0B of archives. After unpacking 99.6MB will be freed.
Would download/install/remove packages.

# `uname -r` = "2.6.34-dbb-deb"
```
8

aptitude remove $(dpkg -l|egrep '^ii linux-(im|he)'|awk '{print $2}'|grep -v `uname -r`)

dbbolton · 2010-06-10 21:23:00 10
Find pages returning 404 errors in apache logs

Finds the top ten pages returning an http response code of 404 in an apache log.
This is sample output - yours may be different.
8

awk '$9 == 404 {print $7}' access_log | uniq -c | sort -rn | head

zlemini · 2010-04-08 21:40:53 7
show ls colors with demo

This can show all ls colors, with a demo.
This is sample output - yours may be different.
8

echo $LS_COLORS | sed 's/:/\n/g' | awk -F= '!/^$/{printf("%s \x1b[%smdemo\x1b[0m\n",$0,$2)}'

bones7456 · 2009-12-15 01:17:46 7
Upload images to omploader.org from the command line.

This function uploads images to http://omploader.org and then prints out the links to the file. Some coloring can also be added to the command with: ompload() { curl -F file1=@"$1" http://omploader.org/upload|awk '/Info:|File:|Thumbnail:|BBCode:/{gsub(/<[^<]*?\/?>/,"");$1=$1;sub(/^/,"\033[0;34m");sub(/:/,"\033[0m:");print}';} Show Sample Output
This is sample output - yours may be different.
```
user@lappy:~$ ompload ompload.png
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 77812  100  2302  100 75510    870  28559  0:00:02  0:00:02 --:--:-- 30558
Info:http://omploader.org/iMnB2eQ
File:http://omploader.org/vMnB2eQ
Thumbnail:http://omploader.org/tMnB2eQ
BBCode:[url=http://omploader.org/vMnB2eQ][img]http://omploader.org/tMnB2eQ[/img][/url]
```
8

ompload() { curl -# -F file1=@"$1" http://ompldr.org/upload|awk '/Info:|File:|Thumbnail:|BBCode:/{gsub(/<[^<]*?\/?>/,"");$1=$1;print}';}

eightmillion · 2009-11-07 20:56:52 5
connect via ssh using mac address

Connect to a machine running ssh using mac address by using the "arp" command Show Sample Output
This is sample output - yours may be different.
```
ssh: connect to host 192.168.1.103 port 22: No route to host
```
8

ssh root@`for ((i=100; i<=110; i++));do arp -a 192.168.1.$i; done | grep 00:35:cf:56:b2:2g | awk '{print $2}' | sed -e 's/(//' -e 's/)//'`

gean01 · 2009-09-09 04:32:20 15
Sum columns from CSV column $COL
This is sample output - yours may be different.
8

awk -F ',' '{ x = x + $4 } END { print x }' test.csv

coffeeaddict_nl · 2009-08-11 12:10:33 11

Also useful with iostat, or pretty much anything else you want timestamped. Show Sample Output

vmstat 1 | awk '{now=strftime("%Y-%m-%d %T "); print now $0}'

inevitability · 2009-07-17 07:41:57 10

Find brute force attempts on SSHd

Searches the /var/log/secure log file for Failed and/or invalid user log in attempts. Show Sample Output
This is sample output - yours may be different.
```
2 67.11.200.144
      4 210.40.128.31
      6 208.71.128.195
      6 64.39.0.38
     15 219.246.112.241
     20 200.214.15.142
     30 119.70.154.57
     30 79.38.22.92
     40 61.152.201.74
     87 88.191.94.168
    107 200.27.214.30
    107 61.134.27.234
    115 200.6.208.186
    170 222.73.37.25
    387 99.154.226.153
    548 222.35.78.224
    627 94.75.240.141
    946 213.191.111.5
```
8

cat /var/log/secure | grep sshd | grep Failed | sed 's/invalid//' | sed 's/user//' | awk '{print $11}' | sort | uniq -c | sort -n

empulse · 2009-03-30 15:48:24 18
Quickly find a count of how many times invalid users have attempted to access your system
This is sample output - yours may be different.
8

gunzip -c /var/log/auth.log.*.gz | cat - /var/log/auth.log /var/log/auth.log.0 | grep "Invalid user" | awk '{print $8;}' | sort | uniq -c | less

eanx · 2009-03-03 04:26:57 16
Add all unversioned files to svn
This is sample output - yours may be different.
8

svn st | grep "^\?" | awk "{print \$2}" | xargs svn add $1

mk · 2009-02-05 17:28:53 31
Generates a TV noise alike output in the terminal

Generates a TV noise alike output in the terminal. Can be combined with https://www.commandlinefu.com/commands/view/9728/make-some-powerful-pink-noise
This is sample output - yours may be different.
7

while true;do printf "$(awk -v c="$(tput cols)" -v s="$RANDOM" 'BEGIN{srand(s);while(--c>=0){printf("\xe2\x96\\%s",sprintf("%o",150+int(10*rand())));}}')";done

ichbins · 2020-05-08 09:55:36 209
Check how far along (in %) your program is in a file

Imagine you've started a long-running process that involves piping data, but you forgot to add the progress-bar option to a command. e.g. xz -dc bigdata.xz | complicated-processing-program > summary . This command uses lsof to see how much data xz has read from the file. lsof -o0 -o -Fo FILENAME Display offsets (-o), in decimal (-o0), in parseable form (-Fo) This will output something like: . p12607 f3 o0t45187072 . Process id (p), File Descriptor (f), Offset (o) . We stat the file to get its size stat -c %s FILENAME . Then we plug the values into awk. Split the line at the letter t: -Ft Define a variable for the file's size: -s=$(stat...) Only work on the offset line: /^o/ . Note this command was tested using the Linux version of lsof. Because it uses lsof's batch option (-F) it may be portable. . Thanks to @unhammer for the brilliant idea. Show Sample Output
This is sample output - yours may be different.
```
24%
```
7

F=bigdata.xz; lsof -o0 -o -Fo $F | awk -Ft -v s=$(stat -c %s $F) '/^o/{printf("%d%%\n", 100*$2/s)}'

flatcap · 2015-09-19 22:22:43 18
Print one . instead of each line

If you're running a command with a lot of output, this serves as a simple progress indicator. This avoids the need to use `/dev/null` for silencing. It works for any command that outputs lines, updates live (`fflush` avoids buffering), and is simple to understand. Show Sample Output
This is sample output - yours may be different.
```
$ ls ~ | ...
..............
```
7

alias ...="awk '{fflush(); printf \".\"}' && echo \"\""

lgarron · 2014-02-22 22:20:22 15
generate random identicon
This is sample output - yours may be different.
7

curl -s "http://www.gravatar.com/avatar/`uuidgen | md5sum | awk '{print $1}'`?s=64&d=identicon&r=PG" | display

kev · 2011-11-29 16:41:04 32
Load average + API google chart

limite = threshold Show Sample Output
This is sample output - yours may be different.
```
http://chart.apis.google.com/chart?chxr=0,0,5&chxt=y&chs=700x240&cht=gm&chds=0,5&chd=t:0.52&chl=0.52&chtt=zappa+load+average
```
7

limite="5";load5=$(awk '{print $1}' /proc/loadavg);echo "http://chart.apis.google.com/chart?chxr=0,0,5&chxt=y&chs=700x240&cht=gm&chds=0,"$limite"&chd=t:"$load5"&chl="$load5"&chtt=$(hostname)+load+average"

ncaio · 2011-04-02 17:55:24 8

This one-liner will use strace to attach to all of the currently running apache processes output and piped from the initial "ps auxw" command into some awk. Show Sample Output

This is sample output - yours may be different.

ps auxw | grep sbin/apache | awk '{print"-p " $2}' | xargs strace
Process 7313 attached - interrupt to quit
Process 7395 attached - interrupt to quit
Process 7396 attached - interrupt to quit
Process 7397 attached - interrupt to quit
Process 7398 attached - interrupt to quit
Process 7399 attached - interrupt to quit
Process 7401 attached - interrupt to quit
Process 7403 attached - interrupt to quit
Process 7448 attached - interrupt to quit
Process 7468 attached - interrupt to quit
Process 7469 attached - interrupt to quit
attach: ptrace(PTRACE_ATTACH, ...): No such process
[pid  7313] select(0, NULL, NULL, NULL, {0, 48000} <unfinished ...>
[pid  7395] poll([{fd=11, events=POLLIN}, {fd=10, events=POLLIN}, {fd=9, events=POLLIN}, {fd=8, events=POLLIN}, {fd=7, events=POLLIN}, {fd=6, events=POLLIN}, {fd=5, events=POLLIN}, {fd=4, events=POLLIN}, {fd=85, events=POLLIN}, {fd=19, events=POLLIN}], 10, -1 <unfinished ...>
[pid  7396] semop(1572864, {{0, -1, SEM_UNDO}}, 1 <unfinished ...>
[pid  7397] semop(1572864, {{0, -1, SEM_UNDO}}, 1 <unfinished ...>
[pid  7398] poll([{fd=15, events=POLLIN}, {fd=19, events=POLLIN}], 2, -1 <unfinished ...>
[pid  7399] semop(1572864, {{0, -1, SEM_UNDO}}, 1 <unfinished ...>
[pid  7401] poll([{fd=15, events=POLLIN}, {fd=19, events=POLLIN}], 2, -1 <unfinished ...>
[pid  7403] poll([{fd=15, events=POLLIN}, {fd=19, events=POLLIN}], 2, -1 <unfinished ...>
[pid  7448] poll([{fd=15, events=POLLIN}, {fd=19, events=POLLIN}], 2, -1 <unfinished ...>
[pid  7468] poll([{fd=15, events=POLLIN}, {fd=19, events=POLLIN}], 2, -1 <unfinished ...>
[pid  7469] poll([{fd=15, events=POLLIN}, {fd=19, events=POLLIN}], 2, -1 <unfinished ...>
[pid  7313] <... select resumed> )      = 0 (Timeout)
[pid  7313] gettimeofday({1300139401, 36665}, NULL) = 0
[pid  7313] waitpid(-1, 0xffdc0a68, WNOHANG|WSTOPPED) = 0
[pid  7313] select(0, NULL, NULL, NULL, {1, 0}) = 0 (Timeout)
[pid  7313] gettimeofday({1300139402, 39688}, NULL) = 0
[pid  7313] waitpid(-1, 0xffdc0a68, WNOHANG|WSTOPPED) = 0
[pid  7313] select(0, NULL, NULL, NULL, {1, 0} <unfinished ...>
Process 7313 detached
Process 7395 detached
Process 7396 detached
Process 7397 detached
Process 7398 detached
Process 7399 detached
Process 7401 detached
Process 7403 detached
Process 7448 detached
Process 7468 detached
Process 7469 detached

ps auxw | grep sbin/apache | awk '{print"-p " $2}' | xargs strace

px · 2011-03-14 21:45:22 34

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Rotate all jpeg images in current folder, rename them to EXIF datetime and set files timestamp to EXIF datetime

Change tha mac adresse

eth0 = the name of the interface 00:01:02:03:04:05 = the new mac adresse the same thing for wireless card $ sudo iwconfig eth1 hw ether 00:01:02:03:04:05

play audio stream and video stream in two different mplayer instances

Sometimes audio and video are not sync'ed. The factor 1.0884 is the quotient 48000/44100. One mplayer plays the audio file in the background, the other the video in the foreground. You can dump the audio file before with another commandlinefu

detect the fastest ldap server on a intranet

This command line detect ldap hosts, by mandatory dns entry, then ping them to detect response average. based on ping response average it sorts and print the faster server in first output line

Change active bond slave

This forces a bonded interface to switch to another slave in the bond as its active slave.

Temporarily ignore known SSH hosts

you may create an alias also, which I did ;-) alias sshu="ssh -o UserKnownHostsFile=/dev/null "

See entire packet payload using tcpdump.

This command will show you the entire payload of a packet. The final "s" increases the snaplength, grabbing the whole packet.

See your current RAM frequency

man dmidecode [look for type]

Convert Unix newlines to DOS newlines

The ctrl+v,ctrl+m portion represents key presses that you should do. If you do it successfully you should see a ^M character appear.

Bring the word under the cursor on the :ex line in Vim

Very handy to bring the word currently under the cursor into a :s command in Vim. Example: If the cursor was on the word "eggs": :s/ ==> :s/eggs

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Commands matching awk (1,537)

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