Commands by netguykb (0)

  • bash: commands not found

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Bitcoin prices from the command line

Alternative size (human readable) of files and directories (biggest last)
using mb it's still readable;) a symbol variation $ du -ms {,.[^.]}* | sort -nk1

Find last reboot time
Specific to OSX.

launch bash without using any letters
I don't know why anyone would use this, I was just messing around tonight and managed to start bash without using any letters and thought I would share. It's pretty simple, first it tries to execute "-" redirecting stderr to stdout which prints the error "bash: -: command not found" to standard output, then I try to execute "bash: -: command not found" which produces the output "bash: bash: -: command not found: command not found". lastly, (on the other side of the semicolon) I use the underscore environment variable which refers to the last command run ("bash: -: command not found") and take out everything after the first ":" character using brace expressions and your left with "bash"

Simplified video file renaming
I used this when I had a directory of movies from a camera. I wanted to watch a little of each movie, then rename it depending on what was in the movie. This did the trick for me.

Single use vnc-over-ssh connection
This command 1. SSH into a machine 2. Tunnels VNC port to your local computer ("-L 5900:localhost:5900") 3. Runs a single use vnc server ("x11vnc -safer -localhost -nopw -once -display :0") 4. Goes into the background ("-f") 5. Runs VNC viewer on the local computer connecting to the remote machine via the newly created SSH tunnel ("vinagre localhost:5900")

Recompress all text files in a subdirectory with lzma
This will deal nicely with filenames containing newlines and will run one lzma process per CPU core. It requires GNU Parallel http://www.youtube.com/watch?v=OpaiGYxkSuQ

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

Replace duplicate files by hardlinks

resolving basic authentication problem(401) with wget
I have a server with a php requiring basic authentication, like this:


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