List all installed rpm packages and it’s size

If you are looking for a command to see the disk usage by each of the rpm‘s then you can use this command:

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      &nbsp;rpm -q --queryformat "%10{SIZE}\t%{NAME}\n"
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And if you use this command very regularly then you can create an alias like

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      &nbsp;alias rpm_size='rpm -q --queryformat "%10{SIZE}\t%{NAME}\n" '
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and use it like

New feature in Gnome/Nautilus

One of the things that I never realized that I am missing in Nautilus until they put the feature in was this. When a file is being copied and there is conflict, there should be option to rename the new file being copied. Also, if the file being copied is image then a small preview/thumbnail would be good.

Yesterday while copying some files, suddenly I noticed that this feature is there now. Pretty useful feature to have. Here’s the screen-shot.

Make any command read line enabled (on *nix)

Make any command read line enabled (on *nix)

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      rlwrap sqlite3 database.db
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Enable readline even if the command line application is not using it.

* View this command to comment, vote or add to favourites * View all commands by pykler

commandlinefu.com

by David Winterbottom (codeinthehole.com)

URL: http://feedproxy.google.com/~r/Command-line-fu/~3/mKEgYoyHCMA/make-any-command-read-line-enabled-on-nix

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Screen enable/disable logging in all windows

If you use screen command a lot then this is something that you will like 🙂

Screen enable/disable loggin in all windows

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      bindkey ^l at "#" log on<br /> <br /> bindkey ^o at "#" log off
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The command when added in screenrc enables logging all open windows by using the C-l (control-l key combination) and disable by C-o . The lines need to be added in separate lines .

OpenLDAP and SSL – some links

Here are some of the links that may be of great help to you if you are having issues with setting up SSL and OpenLDAP. I was having some issues with this setup and these links helped me fix the same.

http://www.faqs.org/docs/Linux-HOWTO/SSL-RedHat-HOWTO.html

http://www.tc.umn.edu/~brams006/selfsign_redhat.html

http://docs.redhat.com/docs/en-US/Red_Hat_Directory_Server/8.1/html/Using_Red_Hat_Console/Starting_the_Server_with_SSL_Enabled-Enabling_SSL_in_the_DS_Admin_Server_and_Console.html

http://directory.fedoraproject.org/wiki/Howto:SSL http://www.linuxtopia.org/online_books//network_administration_guides/ldap_administration/appendix-common-errors_Common_causes_of_LDAP_errors.html

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• Stephan Hermann: Ubuntu 10.04 LTS and OpenLDAP (shermann.name)
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Fundraising for Linux Foundation.

All of us have been benefited by Linux in some way or other and this is due to all the work that is being done by so many organizations and people around the world. I would like to spare some time to tell you about my initiative to raise 100$ for Linux Foundation. Please visit my donation page or click donate on the widget in the bottom of the page. The Linux Foundation will highly appreciate it and so would I.

Print all environment variables, including hidden ones

Print all environment variables, including hidden ones

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      for _a in {A..Z} {a..z};do _z=${!${_a}*};for _i in `eval echo "${_z}"`;do echo -e "$_i: ${!_i}";done;done|cat -Tsv
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This uses some tricks I found while reading the bash man page to enumerate and display all the current environment variables, including those not listed by the ‘env‘ command which according to the bash docs are more for internal use by BASH. The main trick is the way bash will list all environment variable names when performing expansion on ${!A*}. Then the eval builtin makes it work in a loop.