Commands tagged bash .svn (3)

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Using numsum to sum a column of numbers.
if you, like me, do not have the numsum, this way can do the same.

Watch the disk fill up with change highlighting
If you add the -d flag each difference in the command's output will be highlighted. I also monitor individual drives by adding them to df. Makes for a nice thin status line that I can shove to the bottom of the monitor.

Convert text to picture
generates a picture file with the text. Some other samples in: http://www.imagemagick.org/Usage/text/

sort list of email addresses by domain.tld
email random list can be created here: https://www.randomlists.com/email-addresses

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

Intercept, monitor and manipulate a TCP connection.
Forwards localhost:1234 to machine:port, running all data through your chain of piped commands. The above command logs inbound and outbound traffic to two files. Tip: replace tee with sed to manipulate the data in real time (use "sed -e 's/400 Bad Request/200 OK/'" to tweak a web server's responses ;-) Limitless possibilities.

Have your sound card call out elapsed time.
Useful contexts : You are doing yoga or some other physical training in which you are holding a position. Or you practice the pomodoro productivity technique. Or your girlfriend said "We're leaving in 40 minutes". Design details: sleep executes before espeak to give you a 5 seconds head start. espeak is run in the background so it doesn't mess up the timing.

video thumbnail gallery
thumbnail gallery of video using totem

Analyze awk fields
translate and number lines is simpler and you use tr to choose your delimiter (eg for csv files)

Cleanup firefox's database.


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