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Column width in bash environment

Submitted by admin on Sat, 2008-03-29 22:42.
  • bash
  • Debian GNU/Linux OS

export COLUMNS=150

  • admin's blog

USB Stick GNU/Linux mini howto with Fix for "Boot error" Buggy BIOSes

Submitted by admin on Wed, 2008-03-05 23:50.
  • Debian GNU/Linux OS
  • howto

I was reading some articles around the web about how building your persistent GNU/Linux system on usb stick, I found many howtos but I had problems with my BIOS.

  • admin's blog
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Clear the whole Postfix mail queue

Submitted by admin on Fri, 2008-02-22 15:07.
  • bash

~# for i in `mailq|grep '@' |awk {'print $1'}|grep -v '@'`; do postsuper -d $i ; done

Thomas Sewell from coolsewell.com contributed with this helpful notes:

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Split big files for editing

Submitted by admin on Tue, 2008-01-15 14:13.
  • bash
  • emacs

If you need to edit a big file, for example a mysql full dump for recover a single database, and your editor, for example emacs, say
something like "Maximum buffer size exceeded" you can split it in many smaller files.

~$ split -b 100m ORIGINAL_BIG_FILE OUTPUT_FILE_NAME

Output files will be:

OUTPUT_FILE_NAMEaa
OUTPUT_FILE_NAMEab
OUTPUT_FILE_NAMEac

and on ... every one 100MB weight.

Then you can edit and just keep your DB for restore.

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How do you rename files with a certain pattern in bash?

Submitted by admin on Mon, 2006-05-29 09:25.
  • bash
  • scripts

How do you rename files with a certain pattern in bash?

for i in *ABC*
do
new=$ ( echo $i | sed ’s/ABC/DEF/’ )
mv $i $new
done

Thanks Live from Yokohama

  • admin's blog
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