Commands by maverickadrew (0)

  • bash: commands not found

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Adding a startup script to be run at bootup Ubuntu
This script will run each time you boot up.The script must be in /etc/init.d directory.

Cut the first 'N' characters of a line
Saves one character, the original is probably clearer

Create a CD/DVD ISO image from disk.

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

Current running process ordered by %CPU
Useful to detect which process is causing system loads. It shows process PID so as we can take further actions.

Buffer in order to avoir mistakes with redirections that empty your files
A common mistake in Bash is to write command-line where there's command a reading a file and whose result is redirected to that file. It can be easily avoided because of : 1) warnings "-bash: file.txt: cannot overwrite existing file" 2) options (often "-i") that let the command directly modify the file but I like to have that small function that does the trick by waiting for the first command to end before trying to write into the file. Lots of things could probably done in a better way, if you know one...

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

Coping files, excluding certain files
Preserve file structure when coping and exclude some file o dir patterns

Optimal way of deleting huge numbers of files

a simple bash one-liner to create php file and call php function


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