Commands using sort sorted by votes

Commands using sort (800)

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List all files in current dir and subdirs sorted by size

This doesn't require any non-standard programs.
This is sample output - yours may be different.
0

find . -printf "%s %p\n" | sort -n

ClashTheBunny · 2012-05-17 11:39:26 3
Get the file name having biggest size in directory.
This is sample output - yours may be different.
0

ls -l| sort +4n|tail -1| awk '{print $NF}'

pritishunix · 2012-05-25 06:35:39 3

Pretty print all of the Linux vm sysctls for your viewing pleasure

Sometimes you want to see all of the systcls for a given $thing. I happened to need to easily look at all of the vm sysctls between two boxes and compare them. This is what I came up with. Show Sample Output

find /proc/sys/vm -maxdepth 1 -type f | while read i ; do printf "%-35s\t%s\n" "$i" "$(<$i)" ; done | sort -t/ -k4

SEJeff · 2012-05-25 16:34:16 7

mysqlbinlog headers sorted by event time

Shows sorted by query time, the headers of mysqlbinlog entries. Then is easy to locate the heavier events on the raw log dump Show Sample Output
This is sample output - yours may be different.
```
...
1 - #120528 21:55:39 server id 1  end_log_pos 10474343      Query   thread_id=2446084       exec_time=1     error_code=0
15 - #120528 21:55:17 server id 1  end_log_pos 10473569      Query   thread_id=2446071       exec_time=15    error_code=0
22 - #120528 21:55:17 server id 1  end_log_pos 10474905      Query   thread_id=2446084       exec_time=22    error_code=0
...
```
0

mysqlbinlog <logfiles> | grep exec | grep end_log_pos | grep -v exec_time=0 | sed 's/^$.*exec_time=\([0-9]\+$.*\)/\2 - \1 /' | sort -n

theist · 2012-05-30 09:38:02 5
Copy the most recent wav file from /media/ to the current folder

Watch out if you have several USB drives plugged in: it scans the whole /media/ folder !!! You can replace /media/ by the path of a specific USB drive (something like /media/F77A-530B/) I use a sound recorder and I want to plug the recorder and grab the most recent sound. That's what this command does. Use mv instead of cp to move instead of copy. Change *.wav to the required file type.
This is sample output - yours may be different.
0

cp $(find /media/ -type f -name "*.wav" -printf "%T@ %h/%f\n" | sort | tail -1 | awk '{ print $2 }') .

hamoid · 2012-06-01 12:45:43 3
Find a list of all installed packages on a Redhat/CentOS system

This will list all installed packages on a RedHat/CentOS based system, sort them alphabetically, Parse off the version numbers, and delete any duplicate entries. This is good if you need to build out a mirrored system or rebuild a failing system. Show Sample Output
This is sample output - yours may be different.
```
[root@cc05 ~]# rpm -qa | sort | sed -n -e "s/\-[0-9].[0-9]*.*//p" | uniq
acl
acpid
alchemist
alsa-lib
alsa-utils
amtu
anacron
apr
apr-util
aspell
aspell-en
at
atk
at-spi
attr
audiofile
audit
audit-libs
audit-libs-python
authconfig
authconfig-gtk
autoconf
autofs
automake14
automake15
automake16
automake17
automake
```
0

rpm -qa | sort | sed -n -e "s/\-[0-9].[0-9]*.*//p" | uniq

tuxknowledge · 2012-06-04 12:36:39 4
Arch Linux sort installed packages by size

M is size in megabytes, man expac to see other sizes %m is install size %k is download size
This is sample output - yours may be different.
0

expac -S -H M "%m %n"|sort -n

gtmanfred · 2012-06-14 19:41:21 3
List the size (in human readable form) of all sub folders from the current location
This is sample output - yours may be different.
0

du -hs * | sort -h

Woems · 2012-06-15 14:13:06 3
Find files and list them sorted by modification time

here's a version which works on OS X.
This is sample output - yours may be different.
0

find . -type f -exec stat -f '%m %N' {} \; | sort -n

cellularmitosis · 2012-06-20 00:13:52 4
The following commands can be used to reverse the sequence of lines in a file

"nl -ba" numbers all lines in the file (including empty lines), "sort -nr" sorts the lines in descending order, and the "cut" command finally removes the line numbers again.
This is sample output - yours may be different.
0

nl -ba FILE | sort -nr | cut -f2-

maher · 2012-06-24 23:07:06 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
Sort using kth column using : delimiter

Sort using kth column using : delimiter
This is sample output - yours may be different.
0

sort -t: -k 2 names.txt

ankush108 · 2012-06-26 19:15:30 3
Sort files by size

ls -al gives all files, sort +4n sorts by 5th field numerically
This is sample output - yours may be different.
0

ls -al | sort +4n

ankush108 · 2012-06-26 19:20:05 17
Unique sort

Uniq command is mostly used in combination with sort command, as uniq removes duplicates only from a sorted file. i.e In order for uniq to work, all the duplicate entries should be in the adjacent lines. Show Sample Output
This is sample output - yours may be different.
```
Can also use -u option of sort
```
0

sort namesd.txt | uniq

ankush108 · 2012-06-26 19:22:34 6
Show duplicate lines in a file

The following displays only the entries that are duplicates. Show Sample Output
This is sample output - yours may be different.
```
2 Alex Jason:200:Sales
2 Emma Thomas:100:Marketing
```
0

sort namesd.txt | uniq ?cd

ankush108 · 2012-06-26 19:23:58 3
top ten shell command in bash shell
This is sample output - yours may be different.
0

cat ~/.bash_history | perl -lane 'if($F[0] eq "sudo"){$hash{$F[1]}++}else{$hash{$F[0]}++};$all++;END {@top = map {[$_, $hash{$_}]} sort {$hash{$b}<=>$hash{$a}} keys %hash;printf("%10s%10d%10.2f%%\n", $_->[0],$_->[1],$_->[1]/$all*100) for @top[0..9]}'

vinian · 2012-07-02 09:38:06 7
Top Ten of the most active committers in git repositories
This is sample output - yours may be different.
0

git shortlog -s | sort -rn | head

unixmonkey38011 · 2012-07-22 10:28:42 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
Find biggest 10 files in current and subdirectories and sort by file size

"-exec" ftw.
This is sample output - yours may be different.
0

find . -type f -exec du -sh {} + | sort -hr | head

mrfixit42 · 2012-08-03 04:24:36 4

Get URL's from a webpage

Get link to external sites of a url Show Sample Output

curl url | egrep -o '(http|https)://[a-z0-9]*\.[a-z0-9]*\.[a-z0-9]*'|sort |uniq

dbinary · 2012-08-08 17:37:40 3

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

Find highest context switches

This command will find the highest context switches on a server and give you the process listing. Show Sample Output
This is sample output - yours may be different.
```
Context Switches: 1097211 - Process : [migration/12]
Context Switches: 1500058 - Process : [migration/10]
Context Switches: 1558813 - Process : [migration/13]
Context Switches: 2207748 - Process : [migration/11]
Context Switches: 2516720 - Process : /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/var/lib/mysql/server.err --open-files-limit=12288 --pid-file=/var/lib/mysql/server.pid
```
0

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'

jperkster · 2012-09-01 19:43:47 54
Easy way to display yum repo priorities

This probably only works without modifications in RHEL/CentOS/Fedora. Show Sample Output
This is sample output - yours may be different.
```
priority = 1 [asl-3.0]
priority = 1 [asl-3.0-testing]
priority = 1 [base]
priority = 1 [virtualmin]
priority = 1 [virtualmin-universal]
priority = 50 [epel]
```
0

sed -n -e "/^\[/h; /priority *=/{ G; s/\n/ /; s/ity=/ity = /; p }" /etc/yum.repos.d/*.repo | sort -k3n

eddieb · 2012-09-06 00:09:09 5
Find the 10 lusers winners of the "I take up the most disk space" award

the -h option of du and sort (on appropriate distrib) makes output "Human" readable and still sorted by "reversed size" (sort -rh) Show Sample Output
This is sample output - yours may be different.
```
55G	/home/user32
19G	/home/user45
6.7G	/home/user89
16M	/home/user02
64K	/home/user57
```
0

du -sh /home/*|sort -rh|head -n 10

toaster · 2012-09-12 11:54:06 5
Count the number of lines of code, returns total

Searches for *.cpp and *.h in directory structure, counts the number of lines for each matching file and adds the counts together. Show Sample Output
This is sample output - yours may be different.
```
27586
```
0

find . $ -iname '*.cpp' -o -iname '*.h' $ -exec wc -l {} \; | sort -n | cut --delimiter=. -f 1 | awk '{s+=$1} END {print s}'

jecxjoopenid · 2012-09-19 15:21:01 5
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nohup that doesn't generate nohup.out

I'm sure this can be piped into another way. Please share!

Download last file from index of

a simple bash one-liner to create php file and call php function

port scan using parallel

It takes over 5 seconds to scan a single port on a single host using nmap $ time (nmap -p 80 192.168.1.1 &> /dev/null) real 0m5.109s user 0m0.102s sys 0m0.004s It took netcat about 2.5 minutes to scan port 80 on the class C $ time (for NUM in {1..255} ; do nc -w 1 -z -v 192.168.1.${NUM} 80 ; done &> /dev/null) real 2m28.651s user 0m0.136s sys 0m0.341s Using parallel, I am able to scan port 80 on the entire class C in under 2 seconds $ time (seq 1 255 | parallel -j255 'nc -w 1 -z -v 192.168.1.{} 80' &> /dev/null) real 0m1.957s user 0m0.457s sys 0m0.994s

Randomly run command

Randomly decide whether to run a command, or fail. It's useful for testing purposes. . Usage: ran PERCENTAGE COMMAND [ARGS] Note: In this version the percentage is required. . This is like @sesom42 and @snipertyler's commands but in a USABLE form. . e.g. In your complicated shell script, put "ran 99" before a crucial component. Now, it will fail 1% of the time allowing you to test the failure code-path. $ ran 99 my_complex_program arg1 arg2

Silently ensures that a FS is mounted on the given mount point (checks if it's OK, otherwise unmount, create dir and mount)

In my example, the mount point is /media/mpdr1 and the FS is /dev/sdd1 /mountpoint-path = /media/mpdr1 filesystem=/dev/sdd1 Why this command ? Well, in fact, with some external devices I used to face some issues : during data transfer from the device to the internal drive, some errors occurred and the device was unmounted and remounted again in a different folder. In such situations, the command mountpoint gave a positive result even if the FS wasn't properly mounted, that's why I added the df part. And if the device is not properly mounted, the command tries to unmount, to create the folder (if it exists already it will also work) and finally mount the FS on the given mount point.

Create a mirror of a local folder, on a remote server

Create a exact mirror of the local folder "/root/files", on remote server 'remote_server' using SSH command (listening on port 22) (all files & folders on destination server/folder will be deleted)

The fastest remote directory rsync over ssh archival I can muster (40MB/s over 1gb NICs)

This creates an archive that does the following: rsync:: (Everyone seems to like -z, but it is much slower for me) -a: archive mode - rescursive, preserves owner, preserves permissions, preserves modification times, preserves group, copies symlinks as symlinks, preserves device files. -H: preserves hard-links -A: preserves ACLs -X: preserves extended attributes -x: don't cross file-system boundaries -v: increase verbosity --numeric-ds: don't map uid/gid values by user/group name --delete: delete extraneous files from dest dirs (differential clean-up during sync) --progress: show progress during transfer ssh:: -T: turn off pseudo-tty to decrease cpu load on destination. -c arcfour: use the weakest but fastest SSH encryption. Must specify "Ciphers arcfour" in sshd_config on destination. -o Compression=no: Turn off SSH compression. -x: turn off X forwarding if it is on by default. Flip: rsync -aHAXxv --numeric-ids --delete --progress -e "ssh -T -c arcfour -o Compression=no -x" [source_dir] [dest_host:/dest_dir]

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Count Files in a Directory with Wildcards.

If the dir | wc -l Command not working.

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Commands using sort (800)

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