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Grant read/write permissions to user or group

http://technet.microsoft.com/en-us/library/cc753525(WS.10).aspx
This is sample output - yours may be different.
0

icacls directory_or_file /grant user_or_group:(oi)(ci)(m,dc)

shawn_abdushakur · 2013-10-01 18:14:28 7
Redirect CUPS port to localhost
This is sample output - yours may be different.
0

putty -L 631:localhost:631 username@server

shawn_abdushakur · 2014-01-02 20:27:36 9
Parse logs for IP addresses and how many hits from each IP

Accepts multiple files via logs.... Substitute "text to grep" for your search string. If you want to alias this, you could do something like this: alias parse-logs='awk "/$1/{print \$1}" ${@[@]:1} | sort -n | uniq -c | sort -rn | head -n 100'
This is sample output - yours may be different.
0

awk '/text to grep/{print \$1}' logs... | sort -n | uniq -c | sort -rn | head -n 100

impinball · 2014-07-10 20:36:02 7
Search and replace pipes for tabs in file with backup

Use sed to search and replace pipes for tabs in file stream with backup
This is sample output - yours may be different.
0

sed -i.bak -e s/\|/\\t/g filepath.tsv

johnmoxon · 2014-11-04 00:14:59 9
Convert an mp3 and add to it a img
This is sample output - yours may be different.
0

lame -v 2 -b 192 --ti /path/to/file.jpg audio.mp3 new-audio.mp3

fabio · 2015-02-22 07:41:40 11
Top 10 Memory Consuming Processes
This is sample output - yours may be different.
0

ps -auxf | sort -nr -k 4 | head -10

ajoshi83 · 2015-06-19 10:16:08 8
automatically generate the ip/hostname entry for the /etc/hosts in the current system

I use it after a clean CentOS 7 minimal server installation to automatically populate the /etc/hosts file. Not sure why the installation does not add this entry by itself. Tested on CentOS 7 with the simplest use case: 1 static ip address and the hostname provided during installation. Show Sample Output
This is sample output - yours may be different.
```
[root@dns-server ~]# echo "$(ip addr show dev $(ip r | grep -oP 'default.*dev \K\S*') | grep -oP '(?<=inet )[^/]*(?=/)') $(hostname -f) $(hostname -s)"
10.0.2.10 dns-server.mydomain.lab dns-server

[root@dns-server ~]# echo "$(ip addr show dev $(ip r | grep -oP 'default.*dev \K\S*') | grep -oP '(?<=inet )[^/]*(?=/)') $(hostname -f) $(hostname -s)" >> /etc/hosts

[root@dns-server ~]# cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
10.0.2.10 dns-server.mydomain.lab dns-server
```
0

echo "$(ip addr show dev $(ip r | grep -oP 'default.*dev \K\S*') | grep -oP '(?<=inet )[^/]*(?=/)') $(hostname -f) $(hostname -s)"

acavagni · 2019-06-15 16:40:38 42
Display list of locked AFS volumes (if any)

This command shows if there are any locked AFS volumes. The output is a list of AFS volume IDs (or nothing if there are none locked). Show Sample Output
This is sample output - yours may be different.
```
$ vos listvldb | agrep LOCKED -d RWrite | grep RWrite: | awk -F: '{print $2}' | awk '{printf("%s ",$1)} END {printf("\n")}'
536870972
```
0

vos listvldb | agrep LOCKED -d RWrite | grep RWrite: | awk -F: '{print $2}' | awk '{printf("%s ",$1)} END {printf("\n")}'

mpb · 2009-03-17 19:55:39 7
Insert line number in vim

Use this command to insert line numbers in source files, .' ' control how spaces you insert after number. Show Sample Output
This is sample output - yours may be different.
```
1  "file: how insert number lines in vim
2  "site: http://vivaotux.blogspot.com
3  "  .'  ' --> number of spaces after number
```
0

:%s/^/\=line('.').' '

voyeg3r · 2009-08-16 17:48:03 9
Function to output an ASCII character given its decimal equivalent

Doesn't fail for percent sign now.
This is sample output - yours may be different.
0

chr () { echo -en "\0$(printf %x $1)"}

infinull · 2009-10-16 21:54:58 3
List only files in long format.
This is sample output - yours may be different.
0

ls -l | grep ^-

cfajohnson · 2010-03-20 03:20:19 4
What happened on this day in history?

Improved version of command #8425. This way, the default browser is used, as opposed to Firefox.
This is sample output - yours may be different.
0

www-browser http://en.wikipedia.org/wiki/$(date +'%b_%d')

benjabean1 · 2011-05-09 02:42:32 3
See how many more processes are allowed, awesome!
This is sample output - yours may be different.
0

echo $(($(ulimit -u)-$(pgrep -u $USER|wc -l))

h3xx · 2011-07-30 05:03:36 3
convert unixtime to human-readable

convert a unix timestamp to a human readable format. Show Sample Output
This is sample output - yours may be different.
```
Fri Feb 13 23:31:30 2009
```
0

perl -le 'print scalar gmtime shift' 1234567890

kimmel · 2011-11-16 18:37:11 5
Function that show the full path of every argument.

You can use the command "full" not only with one item, with items with diferent paths, and with relatives and absolute paths.
This is sample output - yours may be different.
0

full() {local i;for i in $*;do readlink -f $i;done}

flxndn · 2012-02-09 11:40:05 3
bash/ksh function: given a file, cd to the directory it lives

Had trouble with the other function, because of missing semicolons. (According to my bash on OS X)
This is sample output - yours may be different.
0

function cdf () { [ -f $1 ] && { cd $(dirname $1); } || { cd $1 ; }; pwd; };

Josso · 2012-09-08 10:50:58 6
Threads and processes of a user

This shows all process (-e) and threads (-L) in full format (-F) Show Sample Output
This is sample output - yours may be different.
```
user  20905 21706 20905  0    6 111980 226256 4 10:10 ?        00:00:00 (wsgi:userprocess)             -k start -DSSL
```
0

ps -eLF | grep ^user

balsagoth · 2013-07-24 09:53:12 10
Forgot to use pv or rsync

forgot to use a pv or rsync and want to know how much has been copied. Show Sample Output
This is sample output - yours may be different.
```
Every 2,0s: ls -lh                                      Thu Mar 27 11:48:08 2014

total 3,3G
-rw------- 1 root root 3,3G M?r 27 11:47 some.iso
drwx------ 2 root root  16K M?r 27 11:11 lost+found
```
0

watch ls -lh /path/to/folder

vonElfensenf · 2014-03-27 10:51:36 8
Send notification bubbles to the computers remotely.

Should be the notify-send package installed
This is sample output - yours may be different.
0

ssh -X user@host 'DISPLAY=:0 notify-send "TEST MESSAGE."'

deb14n · 2014-07-11 00:11:01 7
Disk usage summary

Adds up the used disk space on all hard drives that are directly connected to the machine (i.e. no network mounts etc.) Assumes there are no IDE drives present. Show Sample Output
This is sample output - yours may be different.
```
18 GiB used in total
```
0

echo $(df -BG | grep sd | awk '{print $3}' | paste -sd+ | tr -d G | bc) GiB used in total

thureduehrsen · 2016-08-09 10:08:35 38
Go get those photos from a Picasa album

Grab the RSS link to the Picasa album. Feed it to the script when its hungry. When its done writing the shopping list, just use wget -c -i wgetlist to get your stuff.
This is sample output - yours may be different.
0

echo 'Enter Picasa album RSS URL:"; read -e feedurl; GET "$feedurl" |sed 's/</\n</g' | grep media:content |sed 's/.*url='"'"'$[^'"'"']*$'"'"'.*$/\1/' > wgetlist

kamathln · 2009-09-22 10:51:08 3
list files/directories in current directory -- sorted by file size in MB

sudo is optional, but to find out about all files, it is nice, or else run as superuser, ie: su -c 'du -sm * | sort -n' Show Sample Output
This is sample output - yours may be different.
```
0	config
1	CVS
1	cd
9	faimirror
424	nfsroot
```
0

sudo du -sm * | sort -n

wabi · 2010-09-24 17:56:41 9
Archive tar.gz archives all files (with extension filter) individually from an location

This command will : -Archive all *.dmp files individually (one file per archive) from current directory . -Delete original file after has been compressed.
This is sample output - yours may be different.
0

find ./ -iname "*.dmp" -maxdepth 0 -type f -exec tar czvf {}.tar.gz --remove-files {} \; \;

evilinside · 2011-09-07 08:36:29 3
Encrypt text to md5

Encrypt any text to MD5 , replace text with the string you want to convert to MD5 Show Sample Output
This is sample output - yours may be different.
```
1cb251ec0d568de6a929b520c4aed8d1
```
0

wget -qO - --post-data "data[Row][clear]=text" http://md5-encryption.com | grep -A1 "Md5 encrypted state" | tail -n1 | cut -d '"' -f3 | sed 's/>//g; s/<\/b//g'

samhagin · 2011-10-13 03:44:48 3
clean up syntax and de-obfuscate perl script

This will create a new file with proper code formatting and all comments removed.
This is sample output - yours may be different.
0

perl -MO=Deparse filename.pl | perltidy > new.pl

kimmel · 2011-11-16 18:54:30 4
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Run 10 curl commands in parallel via xargs (v2, faster then v1)

Mount windows share to the specified location including credentials

Replace IP address with yours IP.

reset hosed terminal

change user & preserver environment (.bashrc&co)

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)

Extract ip addresses with sed

Extracts ip addressess from file using sed. Uses a tag(ip) to grep the IP lines after extracting. Must be a way to just output regex matched on sed.

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"

Outputs each arg on its own line

This can be useful for transforming command-line args into input for xargs (one per line). This can also be done with ls if the args are filenames, but that's getting awfully close to Useless Use of Cat territory (http://partmaps.org/era/unix/award.html).

Get backup from remote host, then expand in current directory using tar

Create cheap and easy index.html file

If your admin has disabled Apache's directory index feature but you want to have a cheap way to enable it for one folder, this command will just create an index.html file with a link to each file in the directory (including the index.html file, which is not ideal but makes the command much simpler). The HTML isn't even remotely compliant, but it could easily be improved on. Also, the command needs to be run each time a file is added or removed to update the index.html file.

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