Commands by kotokz (3)

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Send a local file via email
if "mail -a" fail, try "mutt -a" or "nail -a"

Make vim open in tabs by default (save to .profile)
I always add this to my .profile rc so I can do things like: "vim *.c" and the files are opened in tabs.

mysqlcheck --defaults-file=/etc/mysql/debian.cnf --auto-repair --all-databases

Capture data in ASCII. 1500 bytes
Sniffing traffic on port 80 only the first 1500 bytes

left-right mouse buttons (left-handed)

randomize hostname and mac address, force dhcp renew. (for anonymous networking)
this string of commands will release your dhcp address, change your mac address, generate a new random hostname and then get a new dhcp lease.

Completely wipe all data on your Synology NAS and reinstall DSM. (BE CAREFUL)

sort list of email addresses by domain.tld
email random list can be created here: https://www.randomlists.com/email-addresses

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

parse and format IP:port currently in listen state without net tools
Useful for containers and environments where you need to know if a port is currently in listen mode but you have not easy way or privileges to install net-tools like netstat or ss. "0A" is the code for listen state. The IP hex is reverse order and all in hex format.


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