ls -Slh

-S will sort files by size
-l long listing
-h will make the output human-readable
-r will reverse the output

bash

mysql -e "show variables like 'datadir'"

mysql

show variables like 'datadir'

Memcache. It allows you to store both strings and php arrays and have fun. If it is not enough, try redis.

Edit file ~/.bash_aliases

nano ~/.bash_aliases

For example I make alias a. So when I press a it will produce php artisan tinker Here file ~/.bash_aliases

alias a='php artisan tinker'

Load aliases immediately

source ~/.bash_aliases

Php isset will tell false if variable is null.

//false
isset($a[1]);

$a[1] = null;
//false
isset($a[1]);

That's why you should use array_key_exists if you need to check if it is set or not.

//false
array_key_exists($a[1]);

$a[1] = null;
//true
array_key_exists($a[1]);

Show process list sorted by memory usage

ps aux --sort=-%mem | awk 'NR<=800{print $0}'

Show process list with full start date

ps -eo pid,lstart,cmd

Remove commit but save current code

git reset --soft HEAD~1
git push origin master --force

Remove commit and remove commit's code

git reset --hard HEAD~1
git push origin master --force

Laravel queue job is caching your job php code, so after updating job code you need to:

php artisan queue:restart

Fast command to test nginx config and reload nginx if test is successful

sudo nginx -t && sudo nginx -s reload

To run some command in background, so you can close terminal, type the following:

nohup command-with-options &

TL DR; To build app on windows to linux 64 type this in powershell

$Env:GOOS = "linux"; $Env:GOARCH = "amd64"; go build main.go