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Just annotations of little "how to's", so I know I can find how to do something I've already done when I need to do it again, in case I don't remember anymore, which is not unlikely. Hopefully they can be useful to others, but I can't guarantee that it will work, or that it won't even make things worse.
Old

Ignoring lines starting with space, and other patterns in bash_history

Posted 08-25-2013 at 11:18 PM by the dsc (linux-related notes)
Updated 08-25-2013 at 11:22 PM by the dsc

It may be a little bit unsafe to have "rm something" commands in your bash history, if you also have the history easily accessible through up and down keys.

The following line will make bash history ignore "rm" and "shutdown":

Code:
export HISTIGNORE="&:rm *:shutdown *"
I don't know the syntax, but it works.

Some people have add there an expression to make bash's history ignore any line starting with...
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Views 404 Comments 0 the dsc is offline
Old

Getting out of a dependency hell without reinstalling

Posted 04-18-2013 at 12:07 AM by the dsc (linux-related notes)
Updated 04-18-2013 at 09:44 PM by the dsc

I'm not suggesting it's really preferable in any situation or in any specific situation, I just found myself in a "what the hell" point and thought it worth a try, and it worked.

I was just thinking that it would be nice that for slideshow videos there was a variable frame rate, and turns out that it exist. I've found that the program handbrake can handle that easily, so I decided to install. Unfortunatelly it's only on Debians unnofficial multimedia repository, which can...
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Posted in Uncategorized
Views 914 Comments 0 the dsc is offline
Old

A good $PS1 for displaying long paths in the bash prompt

Posted 03-13-2013 at 11:29 PM by the dsc (linux-related notes)
Updated 03-13-2013 at 11:30 PM by the dsc
Tags bash, prompt, ps1

Code:
PS1='${debian_chroot:+($debian_chroot)}\t \u $(if [ ${#PWD} -gt 30 ] ; then myPWD="${PWD:0:12}/\W" ; myPWD="${myPWD:0:25}" ; else myPWD=$PWD; fi ; echo $myPWD) $ '
It will display full paths smaller than 30 characters entirely, but for longer paths it will get only the first characters of the whole path, and the fist characters of the last folder in the full path.

The end result is something like:

HH:MM:SS tuxguy /home/tuxguy/mystuf.../xmas...
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Views 635 Comments 0 the dsc is offline
Old

Ditch Deja Vu Sans Condensed, use Liberation Sans, and be happy

Posted 03-09-2013 at 06:01 PM by the dsc (linux-related notes)
Updated 03-09-2013 at 06:02 PM by the dsc (gruesome spelling mistake)

I used to like the condensed variant of Deja Vu, which is the default font (in the regular variation) for many linux distributions/DEs I guess. I've always disliked the regular variant, I find it too wide, while the condensed is very nice to look at. It's quite a hassle to actually use it everywhere though, either the font is buggy, or the apps that read it are buggy. I think it's the former as other fonts with two "nested subtypes/variants" work (such as liberation). The GUI settings...
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Posted in Uncategorized
Views 748 Comments 0 the dsc is offline
Old

Make some apps (mainly KDE apps with text fields) start faster

Posted 02-26-2013 at 07:37 PM by the dsc (linux-related notes)
Updated 02-26-2013 at 07:39 PM by the dsc

Just create a folder "~/.compose-cache".

Or better yet, at least in a semi-philosophical level, have your startup script to create "/dev/shm/.compose-cache" every time, and just create it once, and a soft link to your home folder. No unnecessary access to your disk, writing to and reading from memory instead. Which is often assumed to be better for several cache-type usages, both for performance and (supposedly) for the lifespan of your hard disk*. Some people...
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Views 374 Comments 0 the dsc is offline

  



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