Commands by simonp (1)

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Find corrupted jpeg image files
Finds all corrupted jpeg files in current directory and its subdirectories. Displays the error or warning found. The jpeginfo is part of the jpeginfo package in debian. Should you wish to only get corrupted filenames, use cut to extract them : $ find ./ -name *jpg -exec jpeginfo -c {} \; | grep -E "WARNING|ERROR" | cut -d " " -f 1

Get IP from hostname

list files in mtime order
Simple but useful; list files in the current directory in mtime order. Useful if you've been working on something and then take a day or two off.

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"

Save an HTML page, and covert it to a .pdf file
Uses htmldoc to perform the conversion

Produces a list of when your domains expire
Create a text file called domainlist.txt with a domain per line, then run the command above. All registries are a little different, so play around with the command. Should produce a list of domains and their expirations date. I am responsible for my companies domains and have a dozen or so myself, so this is a quick check if I overlooked any.

Follow the flow of a log file
tailf same as tail -f follow the flow of a log file, showing it in real time to stdout.

Split lossless audio (ape, flac, wav, wv) by cue file

processes per user counter
awk is evil!

list block devices
Shows all block devices in a tree with descruptions of what they are.


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