Commands by hoodie

Commands by hoodie (5)

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strips ogg audio from webm video ( no reencoding )

Strips the audio track from a webm video. Use this in combination with clive or youtube-dl.
This is sample output - yours may be different.
0

for file in "$@"; do name=$(basename "$file" .webm) echo ffmpeg -i $file -vn -c:a copy $name.ogg ffmpeg -i "$file" -vn -c:a copy "$name.ogg" done

hoodie · 2013-10-05 14:49:07 10
create and md5 sum of your password

create and md5 sum of your password without it showing up in your terminal or history. Afterwards we overwrite the $p variable (thx to bazzargh) Show Sample Output
This is sample output - yours may be different.
```
$ read -s p && echo -n $p | md5sum

5f4dcc3b5aa765d61d8327deb882cf99  -
```
1

read -s p && echo -n $p | md5sum;p=

hoodie · 2012-06-08 13:50:50 8
Power Supply Triggered Alert

Checks whether your power supply is still plugged in. If not it will trigger an alarm at maximum volume. Show Sample Output
This is sample output - yours may be different.
```
run this in a screen and unplug your headphones.
```
-3

check(){ power=$(acpi -a) ; if [[ $power == *on-line* ]] ; then echo "supply is on"; else echo "somebody is steeling your laptop"; amixer -c0 set Master 100+ unmute ; mpg123 nuclear-alarm.mp3 ; fi } ;while true; do check ; sleep 2 ; done

hoodie · 2011-12-10 13:42:52 5
resolve short urls

since the most url shorteners respond with a header containing the Location: ... this works with most common shorteners Show Sample Output
This is sample output - yours may be different.
```
resolve http://goo.gl/gy8n
-> http://www.commandlinefu.com/commands/browse
```
2

resolve(){ curl -Is $1 | egrep "Location" | sed "s/Location: $.*$/\1/g"; }

hoodie · 2011-12-06 12:37:46 22
Search commandlinefu.com from the command line using the API

just like the original - just colored and with less
This is sample output - yours may be different.
2

cmdfu(){ curl "http://www.commandlinefu.com/commands/matching/$@/$(echo -n $@ | openssl base64)/plaintext" --silent | sed "s/$^#.*$/\x1b[32m\1\x1b[0m/g" | less -R }

hoodie · 2011-11-08 12:21:06 115

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

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Convert CSV to JSON

Replace 'csv_file.csv' with your filename.

Show a Package Version on RPM based distributions

if you want to see all information about a package use: rpm -qi pkgname full list of querytags can be accessed by the command: rpm --querytags you can also customize the query format how ever you like with using more querytags together along with escape sequences in "man printf"! you can also use more than one package name. for example this command shows name and version in to columns: rpm -q --queryformat %-30{NAME}%{VERSION}\\n pkg1 pkg2

Convert a string to

View ~/.ssh/known_hosts key information

Will return the SSH server key information for each host you have in your ~/.ssh/known_hosts file, including key size, key fingerprint, key IP address or domain name, and key type.

list files recursively by size

Get a range on line with sed (first two)

Get the two first lines of a file and quit.

Best option set for 7zip compression of database dumps or generic text files

These re the best option combination that works fine for compressing my database dumps. It's possible that there are another option or value that might improve the compression ratio, by these are the ones that worked, the syntax for 7zr it's a little messy...

Write and read HDD external

Write and read HDD external FreeBSD

Test speaker channels

Useful tool to test if all speaker channels are working properly. speaker-test is part of alsa-utils package

Look for English words in /dev/urandom

Little faster alternative.

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