Commands by braak

Commands by braak (2)

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Print a list of installed Perl modules

Works only if modules are installed "the right way"
This is sample output - yours may be different.
6

perl -MExtUtils::Installed -e '$inst = ExtUtils::Installed->new(); @modules = $inst->modules(); print join("\n", @modules);'

braak · 2010-07-20 15:47:32 1
Count the number of man pages per first character (a-z)

There once was a day I needed this info. Show Sample Output
This is sample output - yours may be different.
```
302:    a
399:    b
299:    c
...
```
1

for i in {a..z} ; do man -k $i |grep -i "^$i" |wc | awk 'BEGIN { OFS = ":"; ORS = "" }{print $1, "\t"}' && echo $i ;done

braak · 2010-07-15 11:41:06 0

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Execute a command with the last parameter of a previous command

Suppose that you had change in a directory like /home/user/mycode/code, and now you need to list it, instead of type entire path again, use ls !$ to recall path and list. Useful with many commands, this is only an example. (In this case, same result can be achivied with ls .)

Analyze awk fields

Breaks down and numbers each line and it's fields. This is really useful when you are going to parse something with awk but aren't sure exactly where to start.

Search commandlinefu.com from the command line using the API

for me the above command didn't work for more than one argument but this one does

wget progress bar with customized data size for dots

Scan a document to PDF

Adjust the --resolution and --mode as required (if these options are available for your scanner). The size options (-x, -y, -imageheight, -imagewidth) are for US letter paper. For A4, I think the command would be: $scanimage -p --resolution 250 --mode Gray -x 210 -y 297 | pnmtops -imageheight 11.7 -imagewidth 8.3 | ps2pdf - output.pdf

Kill all processes belonging to a user

vim easter egg

inside vim try: :help 42 to get the meaning of life, the universe and everything !

Rapidly invoke an editor to write a long, complex, or tricky command

Next time you are using your shell, try typing $ ctrl-x ctrl-e # in emacs mode or $ v # in vi mode The shell will take what you've written on the command line thus far and paste it into the editor specified by $EDITOR. Then you can edit at leisure using all the powerful macros and commands of vi, emacs, nano, or whatever.

duration of the DNS-query

Filter IPs out of files

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