Commands by torrid (10)

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Figure out what shell you're running
short, sweet, and works after sudoing a new shell.

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"

put command in a loop to keep trying a connection
This will keep trying to reconnect your netcat connection can be used with SSH or Telnet, just substitute nc for ssh or telnet very useful for troubleshooting VPNs were you want to send continuous packets towards a destination to trace.

Determine next available UID
better with accounts on ldap

Detect illegal access to kernel space, potentially useful for Meltdown detection
Based on capsule8 agent examples, not rigorously tested

Remove all mail in Postfix mail queue.

Find ASCII files and extract IP addresses

Look for English words in /dev/urandom
* to get the English dictionary: wget http://www.mavi1.org/web_security/wordlists/webster-dictionary.txt

List the binaries installed by a Debian package
GNU grep's perl-compatible regular expression(PCRE).

Find biggest 10 files in current and subdirectories and sort by file size


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