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get disk usage sum for files of type

print sum of disk usage for filetype within current dir and subdirs Show Sample Output
This is sample output - yours may be different.
```
nathan@juttenheim:~$ find . -name '*.xml' -type f -print | xargs du -ch
0       ./ma.xml
0       ./derp.xml
482M    ./artbeads.xml
482M    total
```
0

find . -name '*.xml' -type f -print | xargs du -ch

nathwill · 2011-03-22 00:47:42 5
Specify a file name that starts with hyphen, e.g. "-i"

If you just try rm -i, the file name will be interpreted as a command line switch. Many commands let you use a double hyphen '--' to say 'No more switches, the rest are file names'. Incidentally having a file named '-i' in a directory where you use rm * will cause rm to act as if you specified '-i' on the command line. vim -- -v touch -- -t cat -- -c
This is sample output - yours may be different.
0

rm -- -i

merlinblack · 2011-07-26 04:00:32 3
List svn commits by user for a date range

My script lists all users & the number of commits they made in the period, sorted alphabetically. To sort by number of commits, append a '|sort' to the end of the command. The script depends on the output format of svn log - original command didn't work for me because the string 'user' was not appearing in my output
This is sample output - yours may be different.
0

svn log -r{2011-08-01}:HEAD|awk '$14 ~/line/ {print $3}'|sort|uniq -c

sangnoir · 2011-09-01 07:58:54 3
Get your external ip right into your xclipboard
This is sample output - yours may be different.
0

w3m mon-ip.com -dump|grep -Eo "[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}"|uniq|xclip -selection clipboard

anyname · 2012-02-06 14:42:03 3
Show crontabs for all users

added echo "### Crontabs for $user ####"; to make clear whose crontab is listed.
This is sample output - yours may be different.
0

for user in $(getent passwd|cut -f1 -d:); do echo "### Crontabs for $user ####"; crontab -u $user -l; done

harpo · 2012-07-11 13:06:17 3
urldecoding
This is sample output - yours may be different.
0

perl -M URI::Escape -lne 'print uri_unescape($_)'

johnlane · 2014-07-01 10:45:33 7
Get your external IP address
This is sample output - yours may be different.
0

curl whatismyip.akamai.com && echo

donmez · 2015-02-07 17:32:02 8
displays the uptime in a friendly way

useful for human readable reports Show Sample Output
This is sample output - yours may be different.
```
murgatroyd restarted 4 days ago
```
0

echo "$HOSTNAME restarted $(uptime | tr , ' ' | awk '{print $3" "$4}') ago"

forestb · 2015-11-20 19:25:15 10
Convert JSON to YAML

Requires installing json2yaml via npm: npm install -g json2yaml (can also pipe from stdin) Ref: https://www.npmjs.com/package/json2yaml
This is sample output - yours may be different.
0

json2yaml ./example.json > ./example.yml

quaddo · 2017-06-13 22:25:08 19
Get bucket policy from a s3 buckets list
This is sample output - yours may be different.
0

for i in (aws s3api list-buckets --query "Buckets[].Name" | cut -d"," -f1 | grep -vE "\[|\]"); echo $i ; aws s3api get-bucket-policy --bucket (echo $i | xargs); end

tuannvm · 2017-07-19 15:56:54 19
Disable Gradle daemon

Disabling Gradle daemon can sometimes improve build reliability.
This is sample output - yours may be different.
0

echo "org.gradle.daemon=false" >> ~/.gradle/gradle.properties

pkozelka · 2018-10-25 07:04:20 450
Identifies the file types in a directory and adds or replaces their file extensions.

It tries to identify the file types in a directory and adds or replaces them with their appropriate extensions. Please, update the "file" tool before use it (last version: 5.37): https://github.com/file/file
This is sample output - yours may be different.
0

find "$(realpath .)" -type f -exec bash -c 'p="{}"; b="${p##*/}"; e=${b#"${b%.*}"}; e2=$(file -b -F="" --extension "$p"| awk -F/ '\''$1~/^\w+$/ {print $1} '\''); if [ "$e" != ".$e2" ] && [ ! -z $e2 ]; then mv "$p" "${p%$b}${b%$e}.$e2"; fi;' \;

mikhail · 2019-05-18 01:56:25 40
Generate secure password to userwith chpasswd
This is sample output - yours may be different.
0

echo "encryptedpassword"|openssl passwd -1 -stdin

chmouel · 2009-03-15 17:06:50 8
Get the IP of the host your coming from when logged in remotely

host -i `echo $SSH_CLIENT | cut -f 1 -d \ ` | sed 's/.* domain name pointer $.*$\./\1/' to reverse lookup and get the hostname.
This is sample output - yours may be different.
0

echo $SSH_CLIENT | cut -f 1 -d ' '

infinull · 2011-01-11 10:20:45 4
File size
This is sample output - yours may be different.
0

stat -c "%s" <file>

makidoko · 2011-11-12 18:34:07 3

couldn't stand previous unsortability of at jobs list Show Sample Output

atq |sort -k 6n -k 3M -k 4n -k 5 -k 7 -k 1

klepsydra · 2012-05-03 23:15:08 6

Purge all broken packages on ubuntu
This is sample output - yours may be different.
0

aptitude purge $(dpkg -l|grep ^rc|awk '{ print $2 }')

velvetzhero · 2013-01-09 12:29:56 4
Copy canonical path of file 'foo' in the clipboard

'readlink -fn' gets canonical path of the file/directory without newline at the end; 'xsel -ib' copies pipelined string from STDIO to system clipboard (ready to be pasted with CTRL+V). Show Sample Output
This is sample output - yours may be different.
```
< No output if successful. >
```
0

readlink -fn foo | xsel -ib

zplesivcak · 2013-03-09 14:15:31 4
SSH/wmic to remotely kill a process on a windows box

Tested on Windows 8 w/SSH, Cygwin - it can be tricky to quote if you dont use the $(..) syntax to echo it back out Show Sample Output
This is sample output - yours may be different.
```
Deleting instance \\YOUR-PC\ROOT\CIMV2:Win32_Process.Handle="4824"
Instance deletion successful.
```
0

ssh <user>@<ip address> $(echo wmic process where \"name like \'%<process to kill>%\'\" delete)

adanisch · 2014-07-02 04:41:05 6
Redirect output to a write-protected file with sudo but without sh -c, using tee.

Use tee -a to append.
This is sample output - yours may be different.
0

command foo bar | sudo tee /etc/write-protected > /dev/null

adeverteuil · 2015-02-08 03:58:35 9
Efficiently print a line deep in a huge log file

Get two different lines like this: sed -n '1000000p;2000000{p;q;}' < massive-log-file.log See also: http://www.commandlinefu.com/commands/view/6043/print-just-line-4-from-a-textfile
This is sample output - yours may be different.
0

sed -n '1000000{p;q;}' < massive-log-file.log

bariumbitmap · 2015-11-20 19:43:41 28
FSTAB Ubuntu mount NFS Share
This is sample output - yours may be different.
0

192.168.1.7:/mnt/tank/media/music /home/user/music nfs auto,nofail,noatime,nolock,intr,tcp,actimeo=1800 0 0

trueeasy · 2018-10-26 07:59:19 569
Make a pipe organ sound using XMMS and Python

You can get XMMS from here if it's not in your repositories: http://www.xmms.org/
This is sample output - yours may be different.
0

xmms `python -c "print \"tone://\" + \";\".join([str(22*(2**x)) for x in range(9)])"`

int19h · 2009-02-16 01:12:34 40
Will email user@example.com when all Rsync processes have finished.

This will email user@example.com a message with the body: "rsync done" when there are no processes of rsync running. This can be changed for other uses by changing $(pgrep rsync) to something else, and echo "rsync done" | mailx user@example.com to another command.
This is sample output - yours may be different.
0

$(while [ ! -z "$(pgrep rsync)" ]; do echo; done; echo "rsync done" | mailx user@example.com) > /dev/null &

matthewbauer · 2009-08-14 19:46:59 4
Function to split a string into an array
This is sample output - yours may be different.
0

Split() { SENT=${*} ; sentarry=( ${SENT} ) ; while [[ ${#sentarry[@]} -gt 0 ]] ; do printf "%s\n" "${sentarry[0]}" ; sentarry=( ${sentarry[@]:1} ) ; done ; }

unixhome · 2010-02-09 20:32:56 3
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List files with full path

This version is a bit more portable although it isn't extended as easily with '-type f' etc. On AIX the find command doesn't have -maxdepth or equivalent.

Create a random file of a specific size

This will create a 10 MB file named testfile.txt. Change the count parameter to change the size of the file. As one commenter pointed out, yes /dev/random can be used, but the content doesn't matter if you just need a file of a specific size for testing purposes, which is why I used /dev/zero. The file size is what matters, not the content. It's 10 MB either way. "Random" just referred to "any file - content not specific"

Quickly graph a list of numbers

Useful when you've produced a large file of numbers, and want to quickly see the distribution. The value of y halfway along the x axis is the median. Simple! Just create the listOfNumbers.txt file with a number on each line to try it out.

Check if network cable is plugged in and working correctly

with 'mii-tool -w eth0' you can watch the interface for changes of the link status

Get length of current playlist in xmms2

list block devices

Shows all block devices in a tree with descruptions of what they are.

Get your outgoing IP address

Rsync remote data as root using sudo

If your user has sudo on the remote box, you can rsync data as root without needing to login as root. This is very helpful if the remote box does not allow root to login over SSH (which is a common security restriction).

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" }

Convert seconds to [DD:][HH:]MM:SS

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