Linux commands
From Organic Design wiki
I'm starting a list of useful linux shell commands (generally "one liners") we use a lot
Contents
Image Manipulation
Resizing JPG's and changing quality setting
The first line shows how to reduce and image to 25% and quality to 50% adding "_resized" to the results filename. The second command uses Perl to apply this same command to all JPG's in the current directory.
Apply an opaque background of a specified colour to a directory of transparent PNG's
- This command requires ImageMagick to be installed
- It loops through all PNG's in the CWD and puts them in a directory called processed which must exist
See also
- Converting_microarray_images for bash/imagemagick image file manipulation
Network commands
Release DHCP lease
Obtain a new DHCP lease
Devices
fstab
Static information about the filesystems (fstab) is a configuration file that contains information of all the partitions and storage devices in your computer. It contains information of where your partitions and storage devices should be mounted and how. See W:Fstab#Example.
mount
All files accessible in a Unix system are arranged in one big tree, the file hierarchy, rooted at /. These files can be spread out over several devices. The mount command serves to attach the file system found on some device to the big file tree.