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The following list of commands help me in my day to day work, but I don't need them often enough to remember them...

serialize a groovy xml object to string


CIFS mount on linux

mount -t cifs -o username=domain\\user "//host/share" /mnt


tar czvf file.tar.gz directory tar xvfz file.tar.gz

ls sorted by file modification time

ls -lt[r]

add user to sudo

visudo -> username ALL=(ALL) NOPASSWD: ALL

bad interpreter problem (unix/windows line endings)

/bin/sh^M: bad interpreter: No such file or directory ->

vi, :set fileformat=unix, :wq!

show open port

sudo netstat -tulpn

openssl handshake

openssl s_client -connect localhost:9443

python script for ssl connection check: cipherscan


tcpdump -ni any -s 0 -w - port 9444

login without password

#!/usr/bin/expect spawn ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no opsa@[lrange $argv 0 1] expect "assword:" send "... enter password here..."; interact