Commands by jambino (4)

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Pipe stdout and stderr, etc., to separate commands
You can use [n]> combined with >(cmd) to attach the various output file descriptors to be the input of different commands.

Sort and count subjects of emails stuck in Exim queue

display typedefs, structs, unions and functions provided by a header file
will display typedefs, structs, unions and functions declared in 'stdio.h'(checkout _IO_FILE structure). It will be helpful if we want to know what a particular header file will offer to us. Command 'cpp' is GNU's C Preprocessor.

Join lines
Even shorter. Stolen from comment posted by eightmillion.

parrallel execution of a command on remote hosts by ssh or rsh or ...
parrallel execution of a command on remote host by ssh or rsh or ... very useful for cluster management (software update)

Find files with lines that do not match a pattern
This one would be much faster, as it's only one executed command.

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

View Owner, Group & Permissions.
#Alias alias perm="stat -c '%n %U:%G-%a'" #Function perm() { for ll in [email protected]; do stat -c "%n %U:%G-%a" "$ll"; done; }

convert a pdf to jpeg
Converts a .pdf to .jpg . should work with jpeg | tiff | png | gif | jp2 | pict | bmp | qtif | psd | sgi | tga

Easily decode unix-time (funtion)
A shell function using perl to easily convert Unix-time to text. Put in in your ~/.bashrc or equivalent. Tested on Linux / Solaris Bourne, bash and zsh. using perl 5.6 and higher. (Does not require GNU date like some other commands)


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