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Open Port Check
also could specify port number: lsof -ni TCP:80

Get full directory path of a script regardless of where it is run from
Also resolves symlinks, showing the full path of the link target

Submit data to a HTML form with POST method and save the response
Assume that you have a form , in the source look for something similar to : input name="rid" type="TEXT" input name="submit" value="SUBMIT" type="SUBMIT" align="center" Then exec the command to get the response into html More info : www.h3manth.com

Find the package that installed a command

list any Linux files without users or groups
suspicious/anomalous ownership may indicate system breach; should return no results

concatenate avi files
concatenates avi files

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"

Find files that are older than x days
Find files that are older than x days in the working directory and list them. This will recurse all the sub-directories inside the working directory. By changing the value for -mtime, you can adjust the time and by replacing the ls command with, say, rm, you can remove those files if you wish to.

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

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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