Commands by John_W (10)

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Find all files under a certain directory /home that have a certain suffix at the end of the file name. Show the file and rename them to remove the suffix.

which process has a port open

Test a serial connection
If the connection works you should see a "hello" on host A. If not: check your cabeling etc :-)

Network Folder Copy with Monitoring ( tar + nc + pv )
Transfer tar stream thru nc with pv montoiring taken from: http://www.catonmat.net/blog/unix-utilities-pipe-viewer/

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

How to run a command on a list of remote servers read from a file
The important thing to note in this command, is the "-n" flag.

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.

check open ports without netstat or lsof

add lyrics

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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