1. Backup your images!
2. With GIMP's Rectangle Select tool, highlight area to crop and note values for Position and Size:
   
   Position: 940, 645 | Size: 93, 30
3. $ mogrify -crop 93x30+940+645 *.png

/nix | Feb 21, 2010

• Delete pages 1-42
  for i in $(jot 42 1) ; do djvm -d file.djvu 1 ; done
• Delete pages 441-449
  count=441 ; until [ $count -gt 449 ] ; do djvm -d file.djvu 441 ; count=`expr $count + 1` ; done
• Delete even pages 204 to 2
  for (( COUNTER=204; COUNTER>=2; COUNTER-=2 )) ; do djvm -d file.djvu $COUNTER ; done
• Delete odd pages 329 to 105
  for (( COUNTER=329; COUNTER>=105; COUNTER-=2 )) ; do djvm -d file.djvu $COUNTER ; done

/nix | Feb 15, 2010

1. Right click on Desktop and select "Create Launcher"
2. Click the springboard icon at top left
3. Enter the following path: /usr/share/pixmaps and then double click the Firefox icon
4. Enter the values below:
   • Type: Application
   • Name: Firefox
   • Command: firefox %u
   • Comment: blank
5. Click OK

/nix | Feb 06, 2010

  for f in *.html;do tidy -m -i $f;done

/nix | Jan 24, 2010

$ file foo
foo: UTF-8 Unicode text, with no line terminators

$ ujguess foo
sjis

$ file bar
bar: ISO-8859 text, with CRLF line terminators

$ ujguess bar
euc

/nix | Jan 03, 2010

1. $sudo perl -MCPAN -e shell
2. cpan> install Unicode::Japanese
3. Save the following script (adapted largely from togdon's example) as full2half.sh and make it executable (chmod u+x):
   #!/bin/bash
   for file in *;do
   newfile=$(echo $file | perl -MUnicode::Japanese -e'print Unicode::Japanese->new(<>)->z2h->get;')
   test "$file" != "$newfile" && mv "$file" "$newfile"
   done
4. cd to desired directory and run script:
   $ /path/to/full2half.sh
   

1. Tools > Options... (in OS X it's OpenOffice.org > Preferences...)
2. Language Settings > Languages > check "Enabled for Asian languages" > OK
3. Highlight text > Format > Change Case > Full-width or Half-width

/nix | Jan 02, 2010

• stamppdf.pl - Apply a mark to each page of a PDF
• extractallimages.pl - Save copies of all PDF images to a directory
• deletepdfpage.pl - Remove one or more pages from a PDF
• appendpdf.pl - Append one PDF to another

$ perl -MCPAN -e shell

cpan> install CAM::PDF

$ pdfinfo.pl pcasm-book.pdf 
File:         pcasm-book.pdf
File Size:    1071411 bytes
Pages:        195
Author:       Paul A. Carter
CreationDate: D:20050320210800
Creator:      LaTeX with hyperref package
Keywords:     80x86 assembly programming
Producer:     pdfTeX-1.10b
Subject:      80x86 Assembly Language Programming
Title:        PC Assembly Language
Page Size:    variable
Optimized:    no
PDF version:  1.4
Security
  Passwd:     none
  Print:      yes
  Modify:     yes
  Copy:       yes
  Add:        yes

$ changepagestring.pl -o pcasm-book.pdf Borland Inprise output.pdf

#!/usr/bin/perl
use warnings;
use strict;
use CAM::PDF;
 
my $infile = '/path/pcasm-book.pdf';

#open file
my $doc = CAM::PDF->new($infile) || die "$CAM::PDF::errstr\n";
 
#look for string
for my $page (1..$doc->numPages) {
	my $content = $doc->getPageContent($page);
		print $content
		}

Borl)1(and)1('s
Borlan)1(d's)-2
Borlan)1(d)-497
Borl)1(and)-241

/nix | Dec 13, 2009

• Chyrp "is a blogging engine designed to be very lightweight while retaining functionality. It is powered by PHP and has very powerful theme and extension engines, so you can personalize it however you want."
• FlatPress "is an open-source standard-compliant multi-lingual extensible blogging engine which does not require a DataBase Management System to work."
• Jekyll "is a blog-aware, static site generator in Ruby" (via Jalada)
• NanoBlogger (first covered over 5 years ago; still under active development) "is a small weblog engine written in Bash for the command line. It uses common UNIX tools such as cat, grep, and sed to create static HTML content."
• PluXml "is a script to create a site or a blog, no need for knowledge in programming nor d' need; a database on its lodging, a traditional environment php is enough for him. PluXml wants to be light and easy d' use thanks to an interface d' simple administration and the storage of your writings in easily transportable XML files." (translation via Babelfish)
• PyBlosxom "is a lightweight file-based weblog system. The project started as a Python clone of Blosxom but has since evolved into a beast of its own. PyBlosxom focuses on three things: simplicity, extensibility, and community."
• reprise - "Minimal static blog with atom and tag support." Available as a single Ruby or Python file.

/nix | Dec 03, 2009

$ ls -l
 505223 aida16en.zip
  10273 atomicwebserver.zip
1359260 camstudio20.zip

$ ls -lh
494K aida16en.zip
 11K atomicwebserver.zip
1.3M camstudio20.zip

/nix | Nov 16, 2009

$ for i in {1..3}; do dd if=/dev/zero of=/path/$i bs=1m count=1; done
or,
$ for i in {1..3}; do mkfile 1m /path/$i; done

C:\>for /L %x in (1,1,3) do fsutil file createnew %x 1048576

• mkfile can generate sparse files with the -n option.
• The Windows for loop set is (start,step,end).
• See also Generate Files with Random Content and Size in Bash, which introduces this script:
  no_of_files=10;
  counter=1;
  while [[ $counter -le $no_of_files ]];
   do echo Creating file no $counter;
    dd bs=1024 count=$RANDOM skip=$RANDOM if=/dev/sda of=random-file.$counter;
    let "counter += 1";
   done

/nix | Nov 13, 2009