Commands by hendry

Commands by hendry (12)

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List cloudfront distributions based on domain

Looking up the id of a CF domain can be painful. Not anymore with this tip. Show Sample Output
This is sample output - yours may be different.
```
E1T4WNRUO9W898 example.com
```
0

aws cloudfront list-distributions | jq -r '.DistributionList | .Items | .[] | .Id + " " + .Aliases.Items[]'

hendry · 2016-09-19 06:36:59 16
Password generator

https://xkcd.com/936/ introduced us to what actually is a good password. Here's such an implementation. Credit: quinq on #suckless Show Sample Output
This is sample output - yours may be different.
```
correct-horse-battery-staple
```
1

printf '%s-%s-%s-%s\n' $(grep -v "[A-Z]\|'" /usr/share/dict/british | shuf -n 4)

hendry · 2016-08-15 08:13:10 14
MP3 player

I tried a few curses based mp3 players for playing back choir practice songs for my wife. Unfortunately none of the ones I tried were capable of scrubbing a track. Firefox saves the day.
This is sample output - yours may be different.
2

find . -name '*.mp3' | sort | while read -r mp3; do echo -e "<h3>$mp3</h3>\n<audio controls src=\"$mp3\"></audio>"; done > index.html; python -m http.server

hendry · 2014-03-24 15:01:49 9
Amplify movie playback

If a movie is too hard to hear, try the above command to make it louder.
This is sample output - yours may be different.
0

mplayer -af volume=10.1:0 $movie

hendry · 2013-05-11 20:47:50 11
Debug how files are being accessed by a process

Instead of looking through `lsof` results, use inotifywait! Show Sample Output
This is sample output - yours may be different.
```
x220:/tmp/foo$ inotifywait -m -r .
Setting up watches.  Beware: since -r was given, this may take a while!
Watches established.
./ CREATE bar
./ OPEN bar
./ ATTRIB bar
./ CLOSE_WRITE,CLOSE bar
```
9

inotifywait -m -r .

hendry · 2013-05-09 16:14:25 6
View all images

So you are in directory with loads of pictures laying around and you need to quickly scan through them all
This is sample output - yours may be different.
2

find -iname '*.jpg' -print0 | xargs -0 feh -d

hendry · 2011-04-10 15:28:14 11
Get size of terminal

See the cols and lines and make sure the console it correctly configured for the screen size. Show Sample Output
This is sample output - yours may be different.
```
hendry@i7 ~$ resize
COLUMNS=208;
LINES=73;
export COLUMNS LINES;
```
6

resize

hendry · 2010-05-08 10:03:24 8

Merge tarballs

Requires the GNU tar ignore zeros option. http://www.gnu.org/software/tar/manual/html_section/Blocking.html Show Sample Output

cat 1.tar.gz 2.tar.gz > 3.tar.gz; tar zxvfi 3.tar.gz

hendry · 2010-05-05 14:27:47 107

Delete C style comments using vim
This is sample output - yours may be different.
3

vim suite.js -c '%s!/\*\_.\{-}\*/!!g'

hendry · 2010-03-19 10:41:08 64
Convert files from DOS line endings to UNIX line endings

The old dos2unix from sysutils has been deprecated on Debian systems to this tool.
This is sample output - yours may be different.
6

fromdos *

hendry · 2010-03-18 16:51:58 8
Encode a file to MPEG4 format

http://handbrake.fr/
This is sample output - yours may be different.
0

HandBrakeCLI -i video.avi -o video.mp4

hendry · 2010-03-17 21:06:01 3
Exclude .svn, .git and other VCS junk for a pristine tarball

~$ tar --version tar (GNU tar) 1.20
This is sample output - yours may be different.
29

tar --exclude-vcs -cf src.tar src/

hendry · 2010-01-20 10:16:17 14

What's this?

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video thumbnail gallery

thumbnail gallery of video using totem

Get the size of all the directories in current directory

OSX's BSD version of the du command uses the -d argument instead of --max-depth.

rename / move Uppercase filenames to lowercase filenames current directory

move filename/rename filenames with Uppercase to lowercase in current directory

Fetch the Gateway Ip Address

Better use iproute2 !

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"

Find the package that installed a command

switch case of a text file

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" }

easily strace all your apache processes

Will open strace on all apache process, on systems using sbin/apache (debian) or sbin/httpd (redhat), and will follow threads newly created.

Copy all documents PDF in disk for your home directory

I used this to copy all PDFs recursively to a selected dir

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