Commands using awk sorted by votes

Commands using awk (1,418)

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Revert all modified files in an SVN repo

This command allows you to revert every modified file one-by-one in a while loop, but also after "echo $file;" you can do any sort of processing you might want to add before the revert happens. Show Sample Output
This is sample output - yours may be different.
```
my/files.txt
Reverted 'my/files.txt'
```
0

svn status | grep "^M" | while read entry; do file=`echo $entry | awk '{print $2}'`; echo $file; svn revert $file; done

wsams · 2012-06-17 16:01:06 9
Number of connections per IP with range 24

cut -f1,2 - IP range 16 cut -f1,2,3 - IP range 24 cut -f1,2,3,4 - IP range 24 Show Sample Output
This is sample output - yours may be different.
```
      1 192.168.1.5
      5 192.168.1.2
      8 192.168.1.52
     15 192.168.1.3
     19 192.168.1.30
```
0

netstat -tn | grep :80 | awk '{print $5}'| grep -v ':80' | cut -f1 -d: |cut -f1,2,3 -d. | sort | uniq -c| sort -n

krishnan · 2012-06-26 08:29:37 3
Mute Master sound channel, printing only the percent volume
This is sample output - yours may be different.
0

amixer -c 0 set Master toggle | sed -n "$ p" | awk '{print $4}' | sed "s/[^0-9]//g"

dtsip · 2012-06-26 21:16:42 7
Unmuting master channel, printing only percent value, while suppressing other outputs
This is sample output - yours may be different.
0

amixer -c 0 set Master toggle | tail -1 | awk '{print $4}' | sed "s/[^0-9]//g" ; amixer -c 0 set Speaker toggle >/dev/null; amixer -c 0 set Front toggle >/dev/null

dtsip · 2012-06-26 21:18:07 5
Execute git submodule update in parallel with xargs
This is sample output - yours may be different.
0

git submodule status | awk '{print $2}' | xargs -P5 -n1 git submodule update --init

lox · 2012-06-27 19:26:56 3
Generate a password for website authentication that can be recreated each time you need to authenticate without saving the password

Create a bash function for easy reference webPassword() { echo $1 $2 | md5sum | awk '{print substr($0,0,10)}' } alias webpwd=webPassword Use like this. webpwd www.commandlinefu.com MyPetNameHere Show Sample Output
This is sample output - yours may be different.
```
$ echo http://www.TheWebSiteName.com privatekeyword | md5sum | awk '{print substr($0,0,10)}'

3ac2dd2389
```
0

echo http://www.TheWebSiteName.com privatekeyword | md5sum | awk '{print substr($0,0,10)}'

ertjies · 2012-06-28 11:32:08 3
Get the IP address
This is sample output - yours may be different.
0

ifconfig | grep "inet" | grep "broadcast" | awk '{print $2}'

wotan · 2012-07-13 01:24:42 3
Get the IP address

more variety
This is sample output - yours may be different.
0

ifconfig | grep "inet" | tail -1 | awk '{print $2}'

wotan · 2012-07-13 01:27:59 3
Get the IP address
This is sample output - yours may be different.
0

ip a s eth0 | awk '/inet / {print $2} | sed -e 's/\/..//g'

ilovespam · 2012-07-18 02:43:15 3
Get the IP address
This is sample output - yours may be different.
0

ip a s eth0 | awk -F"[/ ]+" '/inet / {print $3}'

ilovespam · 2012-07-18 02:47:12 3
Get Unique Hostnames from Apache Config Files

Get a list of all the unique hostnames from the apache configuration files. Handy to see what sites are running on a server. When i saw the command i had some ideas to make it shorter. Here is my version.
This is sample output - yours may be different.
0

egrep 'ServerAlias|ServerName' /etc/apache2/sites-enabled/*.conf | awk '{printf "%s\t%s\n",$2,$3}' | sed 's/www.//' | sort | uniq

staeff · 2012-07-25 12:51:15 3
Displays all the fields of a table, really usefull to run it inside editor (Emacs or vim)

You can execute this inside an editor to get all the fields inside your buffer and do the magic, really usefull when your tables contain a giant list of fields. Show Sample Output
This is sample output - yours may be different.
```
user@machine:~$ echo "describe information_schema.COLUMNS" | mysql -u root | awk '{print $1}' | grep -v Field
TABLE_CATALOG
TABLE_SCHEMA
TABLE_NAME
COLUMN_NAME
ORDINAL_POSITION
COLUMN_DEFAULT
IS_NULLABLE
DATA_TYPE
CHARACTER_MAXIMUM_LENGTH
CHARACTER_OCTET_LENGTH
NUMERIC_PRECISION
NUMERIC_SCALE
CHARACTER_SET_NAME
COLLATION_NAME
COLUMN_TYPE
COLUMN_KEY
EXTRA
PRIVILEGES
```
0

echo "DESCRIBE dbname.table_name" | mysql -u dbusername | awk '{print $1}' | grep -v Field

adauto · 2012-07-26 21:06:11 3
sum and average of requests responses times or sizes in Apache2 access log

Depending on your Apache access log configuration you may have to change the sum+=$11 to previous or next awk token. Beware, usually in access log last token is time of response in microseconds, penultimate token is size of response in bytes. You may use this command line to calculate sum and average of responses sizes. You can also refine the egrep regexp to match specific HTTP requests. Show Sample Output
This is sample output - yours may be different.
```
Tot=134020202(15201)
Avg=8816.54
```
0

egrep '.*(("STATUS)|("HEAD)).*' http_access.2012.07.18.log | awk '{sum+=$11; ++n} END {print "Tot="sum"("n")";print "Avg="sum/n}'

fanchok · 2012-07-27 12:18:29 3
Remove from PATH paths containing a string

If there are spaces won't work.
This is sample output - yours may be different.
0

export PATH= $(echo $PATH | tr ':' '\n' | awk '!/matching string/' | paste -sd:)

bugmenot · 2012-07-29 00:30:54 3

Display IP addresses Pidgin IM Client is connected to

lsof -p `pidof pidgin` | awk '{ print $9 }'|egrep `hostname` | grep -o ">[^:]\+:" | tr -d ":>" | while read line; do host $line; done;

NaN0 · 2012-08-08 14:47:20 3

Add executable bit to all shell scripts under current directory recursively.

Allows to change 'shell' compatible files execution bit even if their name is not *.sh
This is sample output - yours may be different.
0

find . -type f -exec file '{}' + | grep shell | awk -F':' '{print $1}' | xargs chmod u+x

llebegue · 2012-08-09 18:53:08 3
Kill all processes belonging to a user

Okay, commands like this are a bit of a personal peeve. awk(1) operates on a /pattern/ {action} paradigm and yet I see people leave out the /pattern/ portion of an awk command all the time, opting to use grep or sed instead. You'll save yourself some typing and time if you include the /pattern/ with your {action}.
This is sample output - yours may be different.
0

ps wwwwuax|awk '/command/ { printf("kill -9 %s\n",$2) }'|/bin/sh

jetdillo · 2012-08-14 21:44:38 4
Random (sfw, 1920x1080) wallpaper from wallbase.cc
This is sample output - yours may be different.
0

wget --no-use-server-timestamps $(curl $(curl http://wallbase.cc/random/23/eqeq/1920x1080/0/100/20 | grep 'wallpaper/' | awk -F'"' '{print $2}' | head -n1) | grep -A4 bigwall | grep img | awk -F'"' '{print $2}'); feh --bg-center $(ls -1t | head -n1)

yosh · 2012-08-14 22:06:27 3
Connected to first screen session created
This is sample output - yours may be different.
0

screen -x $(screen -ls | awk 'NR == 2 { print $1 }')

codecaine · 2012-08-17 02:03:26 4
list all available disks and disk partitions

grep -e "[sh]d[a-l]$" /proc/partitions | awk '{print $4}' # for disks only grep -e "[sh]d[a-l][0-9]\+" /proc/partitions | awk '{print $4}' # for partitions only Show Sample Output
This is sample output - yours may be different.
```
sda
sda1
sda2
sda3
sdb
sdb1
sdb2
sdb3
```
0

grep -e "[sh]d[a-l][0-9]\?" /proc/partitions | awk '{print $4}'

kro · 2012-08-17 13:15:46 6
Network Interfaces

Linux only Show Sample Output
This is sample output - yours may be different.
```
lo
eth0
```
0

awk '{print $1}' /proc/net/dev|grep :|sed "s/:.*//g"

kro · 2012-08-17 13:36:47 56

Look for free ip's in a given /24 subnet.

The command will make it easy to determine free IP ranges in a crowded sub-net. Show Sample Output

SUBNET="192.168.41" ; diff -y <(nmap -sP -n ${SUBNET}.0/24 | grep ${SUBNET}. | awk '{print $5}' | sort -t"." -k4 -n) <(for i in $(seq 1 254); do echo ${SUBNET}.$i; done)

michel_p · 2012-08-28 09:11:18 4

add untracked/changed items to a git repository before doing a commit and/or sending upstream

I came up with this because I don't have a problem remembering the big major changes I made deep inside my tree for a specific feature or bugfix but always manage to forget the trivial stuff I tweaked or touched along the way that needs to get pushed as well. Show Sample Output
This is sample output - yours may be different.
```
bash-3.2$ git status|awk '/modified:/ { printf("git add %s\n",$3) }; NF ==2 { printf("git add %s\n",$2) }'
git add Android/
git add Docs/
bash-3.2$bash-3.2$ git status
# On branch dev
# Changes to be committed:
#   (use "git reset HEAD <file>..." to unstage)
#
#       new file:   Android/.classpath
#       new file:   Android/.project
#       new file:   Android/AndroidManifest.xml
```
0

git status|awk '/modified:/ { printf("git add %s\n",$3) }; NF ==2 { printf("git add %s\n",$2) }'|sh

jetdillo · 2012-09-03 00:09:04 5

add untracked/changed items to a git repository before doing a commit and/or sending upstream

Uses the --porcelain option, which is garanteed to be stable among git versions and configurations - also, is way easier to parse. Show Sample Output

git status --porcelain | awk '{print $2}' | xargs git add

brandizzi · 2012-09-05 18:07:26 4

Get Current CPU Usage

Get the current cpu % usage on your system. Show Sample Output
This is sample output - yours may be different.
```
13.50
```
0

top -n2 -d 0.5 | grep ^Cpu | sed 's/[[:alpha:]%]*//g' | awk 'NR == 2 {printf("%.2f\n",100-$5)}'

wizzra · 2012-09-06 12:56:26 5
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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" }

write text or append to a file

If you just want to write or append some text to a file without having to run a text editor, run this command. After running the command, start typing away. To exit, type . on a line by itself. Replacing the >> with a single > will let you overwrite your file.

Easy and fast access to often executed commands that are very long and complex.

When using reverse-i-search you have to type some part of the command that you want to retrieve. However, if the command is very complex it might be difficult to recall the parts that will uniquely identify this command. Using the above trick it's possible to label your commands and access them easily by pressing ^R and typing the label (should be short and descriptive). UPDATE: One might suggest using aliases. But in that case it would be difficult to change some parts of the command (such as options, file/directory names, etc).

Serial console to a Vmware VM

Create a serial console with "socket (named pipe)" of "/tmp/socket", "from:server, to:virtual machine" in vmware player, etc.. gui. Run the above command after you have booted the guest OS (which should also be configured for serial console).

View all new log messages in real time with color

Reconnect to screen without disconnecting other sessions

Have your screen session running in multiple places. (warning, things start to look weird if the terminal windows have different dimensions)

check open ports without netstat or lsof

Find the real procesor speed when you use CPU scaling [cpuspeed]

We don't use CPU scaling, but just in case you do, there is something interesting to note. If you look at the /proc/cpuinfo, the speed listed is current running speed of the processors and not the real speed of the chip.

Downmix first audio stream from 7.1 to 5.1 keeping all other streams

Useful for Roku which does not support 7.1. Useful resources: - https://trac.ffmpeg.org/wiki/Map - https://trac.ffmpeg.org/wiki/Encode/HighQualityAudio - https://superuser.com/questions/852400/properly-downmix-5-1-to-stereo-using-ffmpeg

Bypass 1000 Entry limit of Active Directory with ldapsearch

That command bypass the entry limit specifing page results size, when the search arrive to the limit ldapsearch magically reiterate it from the last entry.

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Commands using awk (1,418)

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