Carlos A M S Teles carlos-teles

## find_large_files_linux_reverse_sort
find /opt -type f -printf "%s\t%p\n" | sort -rn |  less

## find_large_files_solaris10_reverse_sort
find /opt -type f -print | xargs ls -l | sort -r -n -k 5,5 | head -20

## terminal_too_wide_within_Solaris
stty columns 120

## install_oxidized_centos8.html
How to Install oxidized 0.28 on CentOS Linux release 8.3.2011

<a href="https://asciinema.org/a/381341" target="_blank"><img src="https://asciinema.org/a/381341.svg" /></a>

<script id="asciicast-381341" src="https://asciinema.org/a/381341.js" async></script>

## mailq-query-postfix.txt
mailq | grep xxxxx\@google.com.br | awk '$7~/@/{print$1}' | while read qid; do postsuper -d $qid; done

mailq | grep MAILER | awk '{print$1}' | while read qid; do postsuper -d $qid; done

mailq | grep MAILER-DAEMON | awk '$7~/@/{print$1}' | while read qid; do postsuper -d $qid; done

## Add-another-swap-linux.txt
#Verify disk space
# df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 32G 0 32G 0% /dev
tmpfs 32G 6.0G 26G 20% /dev/shm
tmpfs 32G 3.2G 29G 11% /run
tmpfs 32G 0 32G 0% /sys/fs/cgroup
/dev/sda1 48G 3.9G 42G 9% /
/dev/sda2 166G 63M 157G 1% /opt <<<<<Here
/dev/mapper/mpathp1 99G 81G 14G 86% /u01

## cicd
.

## dns
.

## cron
https://crontab.guru/

## network attack
.
	How to Install oxidized 0.28 on CentOS Linux release 8.3.2011

	<a href="https://asciinema.org/a/381341" target="_blank"><img src="https://asciinema.org/a/381341.svg" /></a>

	<script id="asciicast-381341" src="https://asciinema.org/a/381341.js" async></script>
	mailq \| grep xxxxx\@google.com.br \| awk '$7~/@/{print$1}' \| while read qid; do postsuper -d $qid; done

	mailq \| grep MAILER \| awk '{print$1}' \| while read qid; do postsuper -d $qid; done

	mailq \| grep MAILER-DAEMON \| awk '$7~/@/{print$1}' \| while read qid; do postsuper -d $qid; done
	#Verify disk space
	# df -h
	Filesystem Size Used Avail Use% Mounted on
	devtmpfs 32G 0 32G 0% /dev
	tmpfs 32G 6.0G 26G 20% /dev/shm
	tmpfs 32G 3.2G 29G 11% /run
	tmpfs 32G 0 32G 0% /sys/fs/cgroup
	/dev/sda1 48G 3.9G 42G 9% /
	/dev/sda2 166G 63M 157G 1% /opt <<<<<Here
	/dev/mapper/mpathp1 99G 81G 14G 86% /u01