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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!

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Commands using sort from sorted by
Terminal - Commands using sort - 660 results
MP3TAG_DECODE_UTF8=0 mp3info2 -p "%a - %l\n" -R . | sort | uniq
for k in `git branch -r|awk '{print $1}'`;do echo -e `git show --pretty=format:"%Cgreen%ci_%C(blue)%c r_%Cred%cn_%Creset" $k|head -n 1`$k;done|sort -r|awk -F"_" '{printf("%s %17s %-22s %s\n",$1,$2,$3,$4)}'
ls /var/log/sa/sa[0-9]*|xargs -I '{}' sar -u -f {}|awk '/^[0-9]/&&!/^12:00:01|RESTART|CPU/{print "%user: "$4" %system: "$6" %iowait: "$7" %nice: "$5" %idle: "$9}'|sort -nk10|head
for i in $(ps -eo pid|grep -v PID);do echo ""; echo -n "==$i== ";awk '/^read|^write/{ORS=" "; print}' /proc/$i/io 2>/dev/null; echo -n " ==$i=="; done|sort -nrk5|awk '{printf "%s\n%s %s\n%s %s\n%s\n\n",$1,$2,$3,$4,$5,$6}'
find /test -type f -printf "%AY%Aj%AH%AM%AS---%h/%f\n" | sort -n
tshark -qr [cap] -z conv,tcp | awk '{printf("%s:%s:%s\n",$1,$3,$10)}' | awk -F: '{printf("%s %s %s\n",$1,$3,substr($5,1,length($5)-10))}' | sort | uniq -c | sort -nr
ps axo %mem,pid,euser,cmd | sort -nr | head -n 10
du -sm /home/* | sort -n | tail -10
for i in $(seq 1 100 | sort -R); do echo $i; sleep 5; done
2012-09-25 17:47:32
Functions: echo seq sleep sort

Random choose numbers from 1 to 100 with 5 seconds interval without duplicates.

find . \( -iname '*.cpp' -o -iname '*.h' \) -exec wc -l {} \; | sort -n | cut --delimiter=. -f 1 | awk '{s+=$1} END {print s}'
2012-09-19 15:21:01
User: jecxjoopenid
Functions: awk cut find sort wc

Searches for *.cpp and *.h in directory structure, counts the number of lines for each matching file and adds the counts together.

sudo -s du -sm /Users/* | sort -nr | head -n 10
2012-09-13 10:15:23
User: mematron
Functions: du head sort sudo

In OSX you would have to make sure that you "sudo -s" your way to happiness since it will give a few "Permission denied" errors before finally spitting out the results. In OSX the directory structure has to start with the "Users" Directory then it will recursively perform the operation.

Your Lord and master,


du -sh /home/*|sort -rh|head -n 10
2012-09-12 11:54:06
User: toaster
Functions: du head sort

the -h option of du and sort (on appropriate distrib) makes output "Human" readable and still sorted by "reversed size" (sort -rh)

sudo lastb | awk '{if ($3 ~ /([[:digit:]]{1,3}\.){3}[[:digit:]]{1,3}/)a[$3] = a[$3]+1} END {for (i in a){print i " : " a[i]}}' | sort -nk 3
2012-09-11 14:51:10
User: sgowie
Functions: awk lastb sort sudo

The lastb command presents you with the history of failed login attempts (stored in /var/log/btmp). The reference file is read/write by root only by default. This can be quite an exhaustive list with lots of bots hammering away at your machine. Sometimes it is more important to see the scale of things, or in this case the volume of failed logins tied to each source IP.

The awk statement determines if the 3rd element is an IP address, and if so increments the running count of failed login attempts associated with it. When done it prints the IP and count.

The sort statement sorts numerically (-n) by column 3 (-k 3), so you can see the most aggressive sources of login attempts. Note that the ':' character is the 2nd column, and that the -n and -k can be combined to -nk.

Please be aware that the btmp file will contain every instance of a failed login unless explicitly rolled over. It should be safe to delete/archive this file after you've processed it.

du -sm /home/* | sort -nr | head -n 10
cut -c23-37 /var/log/squid3/access.log | cut -d' ' -f1 | sort | uniq
2012-09-07 14:57:26
User: dan
Functions: cut sort
Tags: squid webproxy

Generates the list of clients (IPs addresses) that have used the Squid webproxy according to the most recent log. Every IP appears only once in the list.

sed -n -e "/^\[/h; /priority *=/{ G; s/\n/ /; s/ity=/ity = /; p }" /etc/yum.repos.d/*.repo | sort -k3n
2012-09-06 00:09:09
User: eddieb
Functions: sed sort

This probably only works without modifications in RHEL/CentOS/Fedora.

grep -H voluntary_ctxt /proc/*/status |gawk '{ split($1,proc,"/"); if ( $2 > 10000000 ) { printf $2 " - Process : "; system("ps h -o cmd -p "proc[3]) } }' | sort -nk1,1 | sed 's/^/Context Switches: /g'
2012-09-01 19:43:47
User: jperkster
Functions: gawk grep printf sed sort

This command will find the highest context switches on a server and give you the process listing.

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)
2012-08-28 09:11:18
User: michel_p
Functions: awk diff echo grep seq sort

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

tcpdump -ntr NAME_OF_CAPTURED_FILE.pcap 'tcp[13] = 0x02 and dst port 80' | awk '{print $4}' | tr . ' ' | awk '{print $1"."$2"."$3"."$4}' | sort | uniq -c | awk ' {print $2 "\t" $1 }'
dpkg-query -Wf '${Package} - ${Version}\n' | sort -n
curl url | egrep -o '(http|https)://[a-z0-9]*\.[a-z0-9]*\.[a-z0-9]*'|sort |uniq
find . -type f -exec ls -l --full-time {} + | sort -k 6,7
2012-08-03 22:22:51
User: quadcore
Functions: find ls sort
Tags: sort find ls

This sorts files in multiple directories by their modification date. Note that sorting is done at the end using "sort", instead of using the "-ltr" options to "ls". This ensures correct results when sorting a large number of files, in which case "find" will call "ls" multiple times.

find . -type f -exec du -sh {} + | sort -hr | head
egrep 'ServerAlias|ServerName' /etc/apache2/sites-enabled/*.conf | awk '{printf "%s\t%s\n",$2,$3}' | sed 's/www.//' | sort | uniq
2012-07-25 12:51:15
User: staeff
Functions: awk egrep sed sort

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.

git shortlog -s | sort -rn | head