Commands using ls (517)

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Output requirements.txt packages pinned to latest version
Given a requirements.txt file with unpinned package names, output the packages pinned to the latest version. Handy to copy/paste back into your requirements.txt when you start a new project. Note that this will download packages but not install them.

Advanced python tracing
Trace python statement execution and syscalls invoked during that simultaneously

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

List of services sorted by boot order in Redhat-based systems

Get the current gold price
Returns the current price of a troy ounce of gold, in USD. Requires the "jq" JSON parser.

extracts 64 bytes of random digits from random lines out of /dev/random sent to stdio
Use this the next time you need to come up with a reasonably random bitstring, like for a WPA/WPA2 PSK or something. Takes a continuous stream of bytes coming from /dev/urandom, runs it through od(1), picking a random field ($0 and $1 excluded) from a random line and then prints it.

Testing ftp server status
I must monitorize a couple of ftp servers every morning WITHOUT a port-scanner Instead of ftp'ing on 100 ftp servers manually to test their status I use this loop. It might be adaptable to other services, however it may require a 'logout' string instead of 'quit'. The file ftps.txt contains the full list of ftp servers to monitorize.

Disable sleep mode via cli and systemd (Centos, Debian Ubuntu?)
This causes computer to never power off or go into sleep mode. Disables sleep mode linux.

copy ACL of one file to another using getfacl and setfacl
If you copy windows file in e.g. cygwin the ACL might miss on the copied file. With this command you can copy the ACL of an existing file to another. WARNING: Existing ACL will get lost.

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"


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