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.
3

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

brx75x · 2019-09-19 09:42:38 6
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 4
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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ISO info

Get details about an ISO image , without burning it or mounting it .

remove ^M characters from file using sed

removing ^M characters from file with sed

background a wget download

Download all manuals RedHat 7 (CentOS/Fedora) with one command in Linux

delete files containing matching text

-r recursively -Z zero byte after each file name instead of the usual newline -l only filenames

Remove all backup files in my home directory

I use this simple command for remove all backup files generated usually by editors like Vim and Emacs.

positions the mysql slave at a specific master position

say you want to reinitialize the slave database without resetting the master positions. You stop the slave, dump the master database with --master-data=2 then execute the command on the slave and wait for it to stop at the exact position of the dump. reinit the slave db and start the slave. enjoy.

list block devices

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

make sure you don't add large file to your repository

Email someone if a web page has been updated.

A cronjob command line to email someone when a webpages homepage is updated.

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