Copying files with recursively and preserving directory structure

cd /path/to/source/directory

All xml files with in this directory

find . -name '*.xml' | cpio -pdm /path/to/destination/directory

All xml, txt, csv files with in this directory

find . -type f \( -name "*.xml" -o -name "*.txt" -o -name "*.csv" \) | cpio -pdm /path/to/destination/directory

(-updm for overwrite destination content.)

Ref : https://linux.die.net/man/1/cpio

https://en.wikipedia.org/wiki/Cpio#Copy

SSH - Supported escape sequences:

~. - terminate connection (and any multiplexed sessions)

~B - send a BREAK to the remote system

~C - open a command line

~R - request rekey

~V/v - decrease/increase verbosity (LogLevel)

~^Z - suspend ssh

~# - list forwarded connections

~& - background ssh (when waiting for connections to terminate)

~? - this message

~~ - send the escape character by typing it twice

Top 5 cpu/mem consuming process:

ps aux | sort -nrk 3,3 | head -n 5

ps --sort=-pcpu | head -n 6

ps -Ao user,uid,comm,pid,pcpu,tty --sort=-pcpu | head -n 6

top -b -n 1 | head -n 12 | tail -n 5

ps aux | sort -nrk 3,3 | head -n 5

ps -eo pid,comm,%cpu,%mem --sort=-%cpu | head -n 5

ps -eo pid,ppid,cmd,%mem,%cpu --sort=-%mem | head

ps -eo pmem,pcpu,pid,args | tail -n +2 | sort -rnk 1 | head

crontab -e

ps -eo pmem,pcpu,pid,args | tail -n +2 | sort -rnk 1 | head

sed -e 's/Here\(.*\)String/\1/'

echo "Here is a String" | grep -Po '(?<=(Here )).*(?= String)'

echo "Here is a string" | awk -v FS="(Here|string)" '{print $2}'

sed -n '/Here/,/String/p'