adkdev

docker images --format "{{.Repository}}:{{.Tag}}" | grep ':latest' | xargs -L1 docker pull;

adkdev

# Fix dylib for MySQL image not load
# Library not loaded: /usr/local/opt/mysql/lib/libssl.1.1.dylib
# Library not loaded: /usr/local/opt/mysql/lib/libcrypto.1.1.dylib
# image not load

ln -s /usr/local/opt/openssl/lib/libssl.1.1.dylib /usr/local/opt/mysql/lib/libssl.1.1.dylib
ln -s /usr/local/opt/openssl/lib/libcrypto.1.1.dylib /usr/local/opt/mysql/lib/libcrypto.1.1.dylib

adkdev

Shortcut	Action
Navigation	
Ctrl + a	Go to the beginning of the line.
Ctrl + e	Go to the end of the line.
Alt + f	Move the cursor forward one word.
Alt + b	Move the cursor back one word.
Ctrl + f	Move the cursor forward one character.
Ctrl + b	Move the cursor back one character.
Ctrl + x, x	Toggle between the current cursor position and the beginning of the line.
Editing	

adkdev

// source : https://stackoverflow.com/a/58406183/1606462

CommandLineFu had this one liner to run an SMTP server on port 25:

sudo python -m smtpd -n -c DebuggingServer localhost:25

This will run a fake smtp server on your local machine. It won't send anything, but will dump it to the console.

adkdev

#!/bin/bash

yy=2018
for m in `seq 1 12`; do
	mm=$(printf %02.0f $m)
	max_date=$(cal $(date +"${mm} ${yy}") | awk 'NF {DAYS = $NF}; END {print DAYS}')
	for d in `seq 1 $max_date`; do
		dd=$(printf %02.0f $d)
		echo "paht/to/script.sh $yy $mm $dd"
		# sleep 1

adkdev

# method 1 use `find`
find '/path/to/somewhere/' -name '*.txt' -exec grep -e 'pattern' {} \; -print

# method 2 use `grep`
grep -rnw '/path/to/somewhere/' -e "pattern"

adkdev

SELECT procpid, current_query, waiting, waiting_reason, query_start FROM pg_stat_activity WHERE (now() - pg_stat_activity.query_start) > interval '5 minutes' AND current_query != '<IDLE>' ORDER BY query_start DESC LIMIT 100;

adkdev

ps aux | grep "airflow run" | grep -v grep | awk '{print $2}'  | xargs kill -9

adkdev

#!/bin/bash
# source : https://stackoverflow.com/a/44757040/1606462
(echo "COMM PID SWAP"; for file in /proc/*/status ; do awk '/^Pid|VmSwap|Name/{printf $2 " " $3}END{ print ""}' $file; done | grep kB | grep -wv "0 kB" | sort -k 3 -n -r) | column -t

adkdev

find /opt/hadoop/tmp -mmin +360 -exec rm {} \;