Commands by kmac (4)

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Btrfs: Find file names with checksum errors
Btrfs reports the inode numbers of files with failed checksums. Use `find` to lookup the file names of those inodes. The files may need to be deleted and replaced with backups.

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

Fibonacci numbers with awk
Another combination of seq and awk. Not very efficient, but sufficiently quick.

Graphically show percent of mount space used
Automatically drops mount points that have non-numeric sizes (e.g. /proc). Tested in bash on Linux and AIX.

Check syntax for all PHP files in the current directory and all subdirectories

Perform Real-time Process Monitoring Using Watch Utility

All IP connected to my host
find all computer connected to my host through TCP connection.

Use Perl like grep
If you've ever tried "grep -P" you know how terrible it is. Even the man page describes it as "highly experimental". This function will let you 'grep' pipes and files using Perl syntax for regular expressions. The first argument is the pattern, e.g. '/foo/'. The second argument is a filename (optional).

mercurial close branch

create ICO file with more than one image
requires imagemagick. -background transparent is of course optional.


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