Commands using sort sorted by votes

Commands using sort (800)

sorted by

Sort dotted quads

Sort a list of IPV4 addresses in numerical order. Great as a filter, or within vim using !} Show Sample Output
This is sample output - yours may be different.
```
sort -nt . -k 1,1 -k 2,2 -k 3 -k 4  /tmp/j
2.159.416.20
3.4.160.100
3.40.64.100
3.59.146.22
3.159.144.22
3.195.144.22
10.159.164.22
```
14

sort -nt . -k 1,1 -k 2,2 -k 3,3 -k 4,4

sysadmn · 2009-02-26 20:22:57 23
Number of open connections per ip.

Here is a command line to run on your server if you think your server is under attack. It prints our a list of open connections to your server and sorts them by amount. BSD Version: netstat -na |awk '{print $5}' |cut -d "." -f1,2,3,4 |sort |uniq -c |sort -nr Show Sample Output
This is sample output - yours may be different.
```
20 81.49.60.x
21 116.212.111.x
26 65.184.224.x
31 189.61.36.x
84 89.180.3.x
212 127.0.0.1
```
14

netstat -ntu | awk '{print $5}' | cut -d: -f1 | sort | uniq -c | sort -n

tiagofischer · 2009-03-28 21:02:26 73
Identify differences between directories (possibly on different servers)

This can be much faster than downloading one or both trees to a common servers and comparing the files there. After, only those files could be copied down for deeper comparison if needed. Show Sample Output
This is sample output - yours may be different.
```
5,7c7,9
< 5955632baf6598bd56668bf45aae31c3  ./hibernate.properties
< 54ba5e4ebe18ef4855fa2796dfb2521e  ./logging.xml
< 388a7f1823574252e26ddbdbd68a02bf  ./manager.properties
---
> 165768e0b454c90ab1b26150b7954fd2  ./hibernate.properties
> 0ad95a5ab764bfdede2dc713f84ecfc0  ./logging.xml
> 636d9444bc20ffe2dc2433b90b2535e7  ./manager.properties
```
14

diff <(ssh server01 'cd config; find . -type f -exec md5sum {} \;| sort -k 2') <(ssh server02 'cd config;find . -type f -exec md5sum {} \;| sort -k 2')

arcege · 2009-09-11 15:24:59 9
List of commands you use most often

Plot your most used commands with gnuplot.
This is sample output - yours may be different.
14

history | awk '{a[$2]++}END{for(i in a){print a[i] " " i}}' | sort -rn | head > /tmp/cmds | gnuplot -persist <(echo 'plot "/tmp/cmds" using 1:xticlabels(2) with boxes')

sthrs · 2010-06-13 23:35:13 7
sort the output of the 'du' command by largest first, using human readable output.

In this case I'm just grabbing the next level of subdirectories (and same level regular files) with the --max-depth=1 flag. leaving out that flag will just give you finer resolution. Note that you have to use the -h switch with both 'du' and with 'sort.' Show Sample Output
This is sample output - yours may be different.
```
$ du -h --max-depth=1 |sort -rh
4.7M	.
4.3M	./locales
120K	./initializers
112K	./.svn
112K	./environments
```
14

du -h --max-depth=1 |sort -rh

jambino · 2011-11-15 20:30:00 12
du with colored bar graph

i'm using gawk, you may get varying mileage with other varieties. You might want to change the / after du to say, /home/ or /var or something, otherwise this command might take quite some time to complete. Sorry it's so obsfucated, I had to turn a script into a one-liner under 255 characters for commandlinefu. Note: the bar ratio is relative, so the highest ratio of the total disk, "anchors" the rest of the graph. EDIT: the math was slightly wrong, fixed it. Also, made it compliant with older versions of df. Show Sample Output
This is sample output - yours may be different.
```
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| /usr 5.71248% total
|||||||||||||||||||||||||||||||||||| /var 3.19542% total
||||||||||||||||| /home 1.49544% total
||||||||| /lib 0.75594% total
|| /boot 0.154587% total
```
13

t=$(df|awk 'NR!=1{sum+=$2}END{print sum}');sudo du / --max-depth=1|sed '$d'|sort -rn -k1 | awk -v t=$t 'OFMT="%d" {M=64; for (a=0;a<$1;a++){if (a>c){c=a}}br=a/c;b=M*br;for(x=0;x<b;x++){printf "\033[1;31m" "|" "\033[0m"}print " "$2" "(a/t*100)"% total"}'

kevinquinnyo · 2011-12-01 01:21:11 15
count IPv4 connections per IP

usefull in case of abuser/DoS attacks. Show Sample Output
This is sample output - yours may be different.
```
14 111.111.111.111
     28 123.123.123.123
     34 0.0.0.0
```
12

netstat -anp |grep 'tcp\|udp' | awk '{print $5}' | sed s/::ffff:// | cut -d: -f1 | sort | uniq -c | sort -n

dt · 2009-02-15 09:16:16 19
du with colored bar graph

A more efficient way, with reversed order to put the focus in the big ones. Show Sample Output
This is sample output - yours may be different.
```
 41.37% ############################################################## Others
 17.96% ########################### Woody Allen
 13.19% #################### Argentina
 10.86% ################ Ingmar Bergman
  6.55% ########## Serbia
  3.92% ###### NI
  2.24% ### Luis Bu?uel
  0.95% # Jean Renoir
  0.66% # M?xico
  0.64% # Colombia
  0.45% # Charlie Chaplin
  0.45% # Leni Riefenstahl
  0.42% # Cuba
  0.36% # Chile
```
12

du -x --max-depth=1|sort -rn|awk -F / -v c=$COLUMNS 'NR==1{t=$1} NR>1{r=int($1/t*c+.5); b="\033[1;31m"; for (i=0; i<r; i++) b=b"#"; printf " %5.2f%% %s\033[0m %s\n", $1/t*100, b, $2}'|tac

point_to_null · 2015-09-12 10:36:49 22
Shows size of dirs and files, hidden or not, sorted.

Very useful when you need disk space. It calculates the disk usage of all files and dirs (descending them) located at the current directory (including hidden ones). Then sort puts them in order.
This is sample output - yours may be different.
11

du -cs * .[^\.]* | sort -n

cemsbr · 2009-03-02 18:43:48 16

computes the most frequent used words of a text file

cat WAR_AND_PEACE_By_LeoTolstoi.txt | tr -cs "[:alnum:]" "\n"| tr "[:lower:]" "[:upper:]" | awk '{h[$1]++}END{for (i in h){print h[i]" "i}}'|sort -nr | cat -n | head -n 30

cp · 2010-07-05 06:39:20 15

list all file extensions in a directory

... plus do a sort according frequency Show Sample Output
This is sample output - yours may be different.
```
cp@lilith:~ > find Downloads/ -type f | awk -F'.' '{print $NF}' |sort|uniq -c|sort -g |tail
    133 svg
    133 svn-base
    192 xpm
    199 o
    207 uue
    301 cc
    441 cpp
    503 c
   1344 java
   1398 h
```
11

find . -type f | awk -F'.' '{print $NF}' | sort| uniq -c | sort -g

cp · 2011-02-14 09:15:29 8
Recursively find top 20 largest files (> 1MB) sort human readable format

Search for files and list the 20 largest. find . -type f gives us a list of file, recursively, starting from here (.) -print0 | xargs -0 du -h separate the names of files with NULL characters, so we're not confused by spaces then xargs run the du command to find their size (in human-readable form -- 64M not 64123456) | sort -hr use sort to arrange the list in size order. sort -h knows that 1M is bigger than 9K | head -20 finally only select the top twenty out of the list Show Sample Output
This is sample output - yours may be different.
```
64M	./icons/gnome/icon-theme.cache
23M	./fonts/extra-fonts/arialuni.ttf
22M	./libpinyin/data/bigram.db
21M	./fonts/cjkuni-uming/uming.ttc
20M	./anthy/anthy.dic
18M	./mythes/th_en_US_v2.dat
17M	./fonts/wqy-zenhei/wqy-zenhei.ttc
14M	./icons/hicolor/icon-theme.cache
14M	./icons/Faenza/icon-theme.cache
8.3M	./cracklib/pw_dict.pwd
6.2M	./mm-common/doctags/libstdc++.tag
6.2M	./libhangul/hanja/hanja.txt
5.4M	./icons/Mist/icon-theme.cache
4.8M	./gir-1.0/Gtk-3.0.gir
4.8M	./dict/linux.words
4.4M	./gir-1.0/Gtk-2.0.gir
4.3M	./anthy/zipcode.t
4.0M	./fonts/un-core/UnDotumBold.ttf
3.9M	./opencc/simp_to_trad_phrases.ocd
3.8M	./tor/geoip
```
11

find . -type f -print0 | xargs -0 du -h | sort -hr | head -20

flatcap · 2012-03-30 10:21:12 9
Show tcp connections sorted by Host / Most connections
This is sample output - yours may be different.
11

netstat -ntu|awk '{print $5}'|cut -d: -f1 -s|sort|uniq -c|sort -nk1 -r

dbiesecke · 2022-03-08 11:52:18 381
find the biggest files recursively, no matter how many

This command will find the biggest files recursively under a certain directory, no matter if they are too many. If you try the regular commands ("find -type f -exec ls -laSr {} +" or "find -type f -print0 | xargs -0 ls -laSr") the sorting won't be correct because of command line arguments limit. This command won't use command line arguments to sort the files and will display the sorted list correctly. Show Sample Output
This is sample output - yours may be different.
```
-rw-r--r-- 1 fsilveira fsilveira 542537728 2001-10-03 19:29 ./rh72/enigma-SRPMS-disc2.iso
-rw-r--r-- 1 fsilveira fsilveira 624476160 2001-10-03 19:35 ./rh72/enigma-docs.iso
-rw-r--r-- 1 fsilveira fsilveira 669429760 2001-10-03 19:24 ./rh72/enigma-i386-disc2.iso
-rw-r--r-- 1 fsilveira fsilveira 677961728 2001-10-03 19:22 ./rh72/enigma-i386-disc1.iso
-rw-r--r-- 1 fsilveira fsilveira 680282112 2001-10-03 19:27 ./rh72/enigma-SRPMS-disc1.iso
```
10

find . -type f -printf '%20s %p\n' | sort -n | cut -b22- | tr '\n' '\000' | xargs -0 ls -laSr

fsilveira · 2009-08-13 13:13:33 14
sort the contents of a text file in place.

sorts the contents of a file without the need for a second file to take the sorted output. This was previously entered as `sort -g list.txt -o $_` but as others have pointed out the $_ references the previous command. so this would've worked had that been the second part of a command joined with && like: cat list.txt && sort -g list.txt -o $_ The user below me Robin had the most correct command. Show Sample Output
This is sample output - yours may be different.
```
Ape
apple
Apple
Banana
Harold Kumar Digby
harry
Tape
001
01
1
```
10

sort -g -o list.txt{,}

jambino · 2011-11-15 19:59:28 6
Sort a one-per-line list of email address, weeding out duplicates
This is sample output - yours may be different.
9

sed 's/[ \t]*$//' < emails.txt | tr 'A-Z' 'a-z' | sort | uniq > emails_sorted.txt

jdunn · 2009-02-20 19:49:17 12
Check for login failures and summarize

This command checks for the number of times when someone has tried to login to your server and failed. If there are a lot, then that user is being targeted on your system and you might want to make sure that user either has remote logins disabled, or has a strong password, or both. If your output has an "invalid" line, it is a summary of all logins from users that don't exist on your system. Show Sample Output
This is sample output - yours may be different.
```
3478 invalid
   1255 root
     11 mysql
      8 mail
      6 www-data
```
9

zgrep "Failed password" /var/log/auth.log* | awk '{print $9}' | sort | uniq -c | sort -nr | less

dbart · 2009-03-03 13:45:56 11
Get the 10 biggest files/folders for the current direcotry
This is sample output - yours may be different.
9

du -sk * |sort -rn |head

realist · 2009-08-19 02:31:30 6
Find biggest 10 files in current and subdirectories and sort by file size
This is sample output - yours may be different.
9

find . -type f -print0 | xargs -0 du -h | sort -hr | head -10

netaxiz · 2012-06-30 10:03:31 4
Get a quick list of all user and group owners of files and dirs under the cwd.

find -printf '%u\n' | sort | uniq #just users find -printf '%g\n' | sort | uniq #just groups Show Sample Output
This is sample output - yours may be different.
```
apache apache
root root
user1 apache
```
8

find -printf '%u %g\n' | sort | uniq

leper421 · 2009-02-13 22:42:49 14
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
List the largest directories & subdirectoties in the current directory sorted from largest to smallest.
This is sample output - yours may be different.
8

du -k | sort -r -n | more

puddleglum · 2009-03-18 18:14:19 7
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
grab all commandlinefu shell functions into a single file, suitable for sourcing.

Each shell function has its own summary line, as a comment. If there are multiple shell functions with the same name, the function with the highest number of votes is put into the file. Note: added 'grep -v' to the end of the pipeline, to eliminate extraneous lines containing only '--'. Thanks to matthewbauer for pointing this out.
This is sample output - yours may be different.
8

export QQ=$(mktemp -d);(cd $QQ; curl -s -O http://www.commandlinefu.com/commands/browse/sort-by-votes/plaintext/[0-2400:25];for i in $(perl -ne 'print "$1\n" if( /^(\w+)/ )' *|sort -u);do grep -h -m1 -B1 $i *; done)|grep -v '^--' > clf.sh;rm -r $QQ

bartonski · 2010-01-30 19:47:42 40
easily find megabyte eating files or directories

Show Sample Output
This is sample output - yours may be different.
```
ruin:~$ ducks
229G	total
156G	Music
25G	Pictures
18G	Downloads
16G	Movies
1G	Documents
286M	code
172k	.ssh
112k	bin
48k	.git_bash_completion
```
8

du -cks * | sort -rn | while read size fname; do for unit in k M G T P E Z Y; do if [ $size -lt 1024 ]; then echo -e "${size}${unit}\t${fname}"; break; fi; size=$((size/1024)); done; done

askedrelic · 2010-04-05 17:09:14 5
< 1 2 3 4 > Last ›

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

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Reinstall Grub

Use top to monitor only all processes with the same name fragment 'foo'

top accecpts a comma separated list of PIDs.

temporarily override alias of any command

say, someone has aliased ls to 'ls --color=always' and you want to temporarily override the alias (it does not override functions)

Show one line summaries of all DEB packages installed on Ubuntu based on pattern search

I sometimes want to know what packages are installed on my Ubuntu system. I still haven't figured out how to use aptitude effectively, so this is the next best thing. This allows finding by name. The grep '^ii' limits the display to only installed packages. If this is not specified, then it includes listing of non-installed packages as well.

Remote copy directories and files through an SSH tunnel host

If you have lots of remote hosts sitting "behind" an ssh proxy host, then there is a special-case use of "rsynch" that allows one to easily copy directories and files across the ssh proxy host, without having to do two explicit copies: the '-e' option allows for a replacement "rsh" command. We use this option to specify an "ssh" tunnel command, with the '-A' option that causes authentication agent requests to be forwarded back to the local host. If you have ssh set up correctly, the above command can be done without any passwords being entered.

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" }

Find all directories on filesystem containing more than 99MB

Finds all directories containing more than 99MB of files, and prints them in human readable format. The directories sizes do not include their subdirectories, so it is very useful for finding any single directory with a lot of large files.

Using parcellite, indents the content of the clipboard manager

This command takes the content of a Parcellite-managed clipboard manager and add one level of indentation to it. It may be useful to indent a block of code which will enter inside another, already indented one but I use it mostly to indent code I will post in Stack Overflow questions and answers.

Find which service was used by which port number

Get AWS temporary credentials ready to export based on a MFA virtual appliance

You might want to secure your AWS operations requiring to use a MFA token. But then to use API or tools, you need to pass credentials generated with a MFA token. This commands asks you for the MFA code and retrieves these credentials using AWS Cli. To print the exports, you can use: `awk '{ print "export AWS_ACCESS_KEY_ID=\"" $1 "\"\n" "export AWS_SECRET_ACCESS_KEY=\"" $2 "\"\n" "export AWS_SESSION_TOKEN=\"" $3 "\"" }'` You must adapt the command line to include: * $MFA_IDis ARN of the virtual MFA or serial number of the physical one * TTL for the credentials

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Commands using sort (800)

sorted by