Commands by flarn2006

Commands by flarn2006 (5)

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Re-execute a command using a saved /proc/pid/cmdline file

Replace $CMDLINE_FILENAME with the name of the cmdline file you copied from /proc/pid, and $COMMAND with the command to execute with those arguments.
This is sample output - yours may be different.
-2

tail -zn+2 $CMDLINE_FILENAME | xargs -0 $COMMAND

flarn2006 · 2020-06-23 05:31:45 16
Talk out of another computer's speakers

Exactly what the summary says. This command will connect to another computer via SSH, and stream audio from your computer's microphone to the other computer's speakers. Use it like an intercom.
This is sample output - yours may be different.
0

rec -t ogg - | ssh remote_hostname play -t ogg -

flarn2006 · 2016-10-07 07:29:53 0
See how many times you've typed 'ls' by itself

I seem to do this compulsively every time I change directories, sometimes even when I don't, even if I know exactly what I need to do. (Don't worry, the sample output is just an exaggeration. :) Show Sample Output
This is sample output - yours may be different.
```
23934729
```
0

grep -cx ls ~/.bash_history

flarn2006 · 2016-09-14 17:06:59 0
Display "ls -l" output with color in less
This is sample output - yours may be different.
0

ls -l --color | less -R

flarn2006 · 2016-05-07 17:19:56 0
Remove duplicate files from the current directory

Remove everything after the second "rev" to only display the duplicate filenames and their hashes.
This is sample output - yours may be different.
0

sha1sum * | sort | rev | uniq -df1 | rev | cut -d" " -f3 | xargs rm

flarn2006 · 2015-08-09 20:32:12 0

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Remove audio stream from a media file

This syntax also works for ffmpeg as avconv is a fork of ffmpeg.

Find files and calculate size of result in shell

Using find's internal stat to get the file size is about 50 times faster than using -exec stat.

Generate a certificate signing request (CSR) for an existing private key. CSR.csr MUST be exists before

CSR.csr MUST be exists before

list offsets from HEAD with git log.

grep for tabs without using Ctrl-V trick

-P tells grep to use perl regex matches (only works on the GNU grep as far as I know.)

Extract title from HTML files

Case Insensitive! and Works even if the "<title>...</title>" spans over multiple line. Simple! :-)

Convert CSV to JSON

Replace 'csv_file.csv' with your filename.

Discover full java className for import;

If you want to code without a IDE, using java may be painful to discover correct full class names to import. This script google it with javadoc word, then with some luck we got the javadoc as first item. next it curl the target javadoc and extract full name from it. Can by customized to extract other javadoc infos. Pre-reqs: bash, google-chrome, html2text and core-utils

Watch Star Wars via telnet

Use Ctrl-] to stop it.

revert a file with svn

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