ssmtp configuration and installation – raspberry pi.

2013-06-04 2 min read Raspberry Pi
English: Extract from Raspberry Pi board at TransferSummit 2011 (Photo credit: Wikipedia) To get your email working on your raspberry pi, First thing that you should probably do is to set up outgoing emails from your RPi. The easiest way to do so is with ssmtp. Install ssmtp: sudo apt-get install ssmtp Next configure the ssmtp client to send emails using your ISP, open up the file /etc/ssmtp/ssmtp.conf file and make the changes as suggested below: Continue reading

lightweight pdf viewer – zathura.

2013-01-28 1 min read Fedora
Zathura is a lightweight viewer for pdf which works on plugins. Here is shor description : Zathura is a highly configurable and functional PDF viewer based on the Poppler rendering library and the GTK+ toolkit. The idea behind zathura is an application that provides a minimalist and space saving interface as well as an easy usage that mainly focuses on keyboard interaction. But the viewer will not work unless you install the plugins to display the correct plugin. Continue reading

vim mappings for multiple files.

2012-08-06 1 min read Vim Tips
If you open multiple files in vim with command line option. Then the only way to move between the files is “:n” and “:N”. There is a easier way to do this. Just add mappings for this in vimrc. Here is what you can use. map :N map :n And if you want to make sure that you move to the prev or next file after saving the file, then you modifyt the mapping like this: Continue reading

gqlplus – sqlplus with readline (tab completion)

2012-08-03 1 min read Database
Tab completion is something which is missing in the sqlplus and if you have lot of tables with long names or lot of columns then it is sufficiently difficult to type them 🙂 Here is a solution for this problem. Download and install gqlplus. gqlplus is a replcement for sqlplus which supports completion for commands/tablenames and column names. Quite useful. Oracle SQL*Plus (Photo credit: Manuel Cernuda) Related articles 2 GB File limit on writing file using Oracle SQLPlus in Unix(compscicafe. Continue reading

rpmconf – Tool to handle rpmsave and rpmnew files

2012-06-18 1 min read bash Fedora
Install the utility: sudo yum install rpmconf Description: Description : This tool search for .rpmnew, .rpmsave and .rpmorig files and ask you what to do with them: Keep current version, place back old version, watch the diff or merge. And finally run the utility: sudo rpmconf -a and if there is a conflict or rpmsave or rpmnew file, then you will see something like this: Configuration file `/etc/default/grub’ -rw-r–r– 1 root root 354 Mar 16 22:49 /etc/default/grub. Continue reading

pigz -parallel gzip

2012-03-26 1 min read Fedora Linux
Here is a short description of pigz: pigz, which stands for parallel implementation of gzip, is a fully functional replacement for gzip that exploits multiple processors and multiple cores to the hilt when compressing data. And for the installation: sudo yum install pigz With pigz, if you don’t have many things running on your multi processor machine then you will see a significant improvement when you are gzipping the files. Continue reading

cream bash ide – vim with bash support

2012-03-14 1 min read Fedora Linux Uncategorized
Image via Wikipedia Here you can find the cream editor. This is basically vim editor with lots of customizations thus making it simpler for the users to use the editor directly. This version already has the bash and perl support plugins and thus you can start using them as IDE without the need to add any plugins. It has a simple and advanced mode. In the simple mode you need not worry about all the modes of the vi/vim editor. Continue reading
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