Commands by unixmonkey4437 (2)

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draw mesh

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

Move a folder and merge it with another folder
This will move a folder and merge it with another folder which may contain duplicates. Technically it's just creating hardlinks of everything in the folder, and after it's done, delete the source (with rm -r source/ ) to complete the move. This is much faster than, for example, using rsync to merge folders which would actually copy the entire contents and so for a lot of files would take much longer. This uses macutils gcp port of cp so it can be used on osx/MacOS. If using in linux or some unix where cp includes the ability to create links with -l you can just use cp instead of gcp.

Go to the next sibling directory in alphabetical order
Sometimes you have to browse your way through a lot of sub-directories. This command cd to the next sub-directory in alphabetical order. For example, if you have the directories "lectures/01-intro", "lectures/02-basic", "lectures/03-advanced" and so on, and your PWD is "02-basic", it jumps to "03-advanced".

List of macros defined by gcc
Lists all macros and their values defined by gcc.

check open ports without netstat or lsof

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

Compare directories via diff
http://hints.macworld.com/article.php?story=20070408062023352

list all file extensions in a directory
If your grep doesn't have an -o option, you can use sed instead.

determine if tcp port is open
@putnamhill, no need if statement in that case. && is a AND and || is a OR


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