Commands by brx75x

Commands by brx75x (6)

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Create backup copy of file, adding suffix of the date of the file modification (NOT today's date)

If your `date` command has `-r` option, you don't need `stat`
This is sample output - yours may be different.
1

cp file{,.$(date -r file "+%y%m%d")}

brx75x · 2019-09-19 09:42:38 0
Grep live log tailing
This is sample output - yours may be different.
0

tail -F some_log_file.log | grep --line-buffered the_thing_i_want

brx75x · 2018-01-24 09:54:36 0
ShellCheck all the bash/sh script under a specific directory excluding version control

This is a commodity one-liner that uses ShellCheck to assure some quality on bash and sh scripts under a specific directory. It ignores the files in .git directory. Just substitute "./.git/*" with "./.svn/*" for older and booring centralized version control. Just substitute ShellCheck with "rm" if your scripts are crap and you want to get rid of them :)
This is sample output - yours may be different.
5

find . -type f ! -path "./.git/*" -exec sh -c "head -n 1 {} | egrep -a 'bin/bash|bin/sh' >/dev/null" \; -print -exec shellcheck {} \;

brx75x · 2017-03-16 08:43:56 3
Prefix every line with a timestamp
This is sample output - yours may be different.
1

any command | sed "s/^/\[`date +"%Y%m%d%H%M%S"`]/"

brx75x · 2014-02-10 16:18:51 2
encode HTML entities

Encode HTML entities supporting UTF-8 input and output
This is sample output - yours may be different.
0

perl -MHTML::Entities -ne 'print encode_entities($_)' /tmp/subor.txt

brx75x · 2012-10-11 08:31:14 0
Create a continuous digital clock in Linux terminal

Same effect, only shell commands. Show Sample Output
This is sample output - yours may be different.
```
15:25:31
```
1

while [ 1 ] ; do echo -en "$(date +%T)\r" ; sleep 1; done

brx75x · 2012-10-01 13:25:49 0

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Convert entire audio library in parallel

Uses parallel processing Reiteration of my earlier command https://www.commandlinefu.com/commands/view/15246/convert-entire-music-library Usage lc Old_Directory New_DIrectory Old_Format New_Format lc ~/Music ~/Music_ogg mp3 ogg

list block devices

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

Creating A Single Image Video With Audio via ffmpeg

turn off auto hard disc boot scanning for ext3

Counts number of lines

Counts number of lines of code in *.h and *.cc files

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 usb device

I often use it to find recently added ou removed device, or using find in /dev, or anything similar. Just run the command, plug the device, and wait to see him and only him

count match string lines from file(s)

Using Git, stage all manually deleted files.

Selecting a random file/folder of a folder

Also looks in subfolders

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