My little Tips and Tricks [en]
I have been setting up a Tips and Tricks file for myself, little bits of everything I use (either for me or to help people) and never remember because I do not use them so often. This post will be sort of a sticky note where I can easily retrieve them when I am not on my own Ubuntu box. If you happen to have little Tips and Tricks, thank you for sharing them ;-)
- To know my IP from a command line :
wget http://checkip.dyndns.org/ -O - -o /dev/null | cut -d: -f 2 | cut -d\< -f 1
- To know which debian/ubuntu release is installed :
lsb_release -cd
- To get a screenshot from gnome environment after a specific action is done (ie with a delay) :
gnome-panel-screenshot --delay=10
- To get a GDM screenshot, install
imagemagick
, go to GDM login screen, then to a tty (CTRL+ALT+F2) andchvt 7 ; sleep 5 ; XAUTHORITY=/var/lib/gdm/:0.Xauth DISPLAY=:0.0 sudo import -window root gdm-screenshot.png; chvt 2
. The filegdm-screenshot.png
will be saved in your current directory file - Do not want to use a
.htaccess
file in a directory of your site, but do not want people to freely browse through, but still get or see specific files ? Put an emptyindex.html
file in that directory - I do not remember who I am : either
$ logname
or$ whoami
- Who is currently logged in my box
$ users
- Who can logon : either
$ cat /etc/passwd | awk -F: '$3 == 0 || $3 > 500 { print $0 }'
or$ grep /bin/bash /etc/passwd
- My iud, gid, groups
$ id
edit :
from cep’s comment on the french entry : zenity --info --text=" `wget http://checkip.dyndns.org/ -O - -o /dev/null | cut -d: -f 2 | cut -d\< -f 1 ; /sbin/ifconfig eth0 |grep inet\ adr | awk '{ print $2} ' |cut -d: -f 2 `"
will show your public IP along with the lan address in a nice box. Thank you cep :-)
References
http://forum.ubuntu-fr.org/viewtopic.php?pid=530625#p530625
http://ubuntuforums.org/showthread.php?t=2127
http://www.ubuntuforums.org/showthread.php?t=330432
€mix@m in ubuntu@chat.jabberfr.org
janvier 7th, 2007 at 23:24
Very neat. I particularly like the wget trick for an IP address. Cheers! :D
janvier 8th, 2007 at 11:50
Thank you K.Mandla. Cheers :)