Commands by bunam (14)

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Suspend to ram
Using sys

Push your present working directory to a stack that you can pop later
If are a Bash user and you are in a directory and need to go else where for a while but don't want to lose where you were, use pushd instead of cd. cd /home/complicated/path/.I/dont/want/to/forget pushd /tmp cd thing/in/tmp popd (returns you to /home/complicated/path/.I/dont/want/to/forget)

Arguments too long

Generate random valid mac addresses
Doubt it actually generates valid mac addresses but this version doesn't need any external commands so it runs much faster. Much shorter as well.

Read null character seperated fields from a file
Handle any bad named file which contains ",',\n,\b,\t,` etc Store the file name as null character separated list $find . -print0 >name.lst and retrieve it using $read -r -d "" Eg: $find . -print0 >name.lst; $cat name.lst| while IFS="" read -r -d "" file; $do $ls -l "$file"; $done

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

How To Get the Apache Document Root
Grabs the Apache config file (yielded from httpd) and returns the path specified as DocumentRoot.

Split video files using avconv along keyframes

Create a bash script from last n commands
Uses history to get the last n+1 commands (since this command will appear as the most recent), then strips out the line number and this command using sed, and appends the commands to a file.

recursively change file name from uppercase to lowercase (or viceversa)
or, to process a single directory: $ for f in *; do mv $f `echo $f |tr '[:upper:]' '[:lower:]'`; done


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