It seems that there is no much documentation about how to do rsync like backup with duplicty so here it is :

Install python-cloudfiles from here http://github.com/rackspace/python-cloudfiles
Install duplicity, its available directly from Debian or alike distros (ie: ubuntu) or you can do that from source from the homepage.
Get your API Key from https://manage.rackspacecloud.com/ and use a script [...]

After seeing this script http://overhrd.com/?p=106 which allow to upload files with the file manager (finder) of MacosX to Rackspace Cloud Files, I have made a nautilus script that doe the same for us Gnome/Unix users.
Available here :
http://github.com/chmouel/nautilus-rackspace-cloud-file/tree/master

So at work we have to use a bastion host for all our connections to servers to be able to get called PCI compliant. This kind of stuff could be a pain to use when you have to use another host to do RSYNC/SCP or other stuff that need direct transfer to workstation.
Thankfully OpenSSH is [...]

If you want to generate properly encrypted password to feed to chpasswd, the most easier and proper way is to do that from command line :
[code lang="bash"]
echo "encryptedpassword"|openssl passwd -1 -stdin
[/code]
If you want to generate in pure python you can do it like that :
[code lang="python"]
def md5crypt(password, salt, magic='$1$'):
[...]

If you like me you have a big screen with your laptop and wants to automate when your X session start to get the best resolution, you can use that script :
[code lang="bash"]
#!/bin/bash
function get_resolutions() {
xrandr|while read -a line;do
RES="${line[1]}x${line[3]} "
[[ ${RES} != [0-9]* ]] && continue
echo ${RES}
done
}
_BEST_RES=0
BEST_RES=
for res in $(get_resolutions);do
_res=${res/x/}
[[ $_res -ge ${_BEST_RES} ]] && {
BEST_RES=${res}
_BEST_RES=${_res}
}
done
xrandr [...]

If you like me, you have to do a lot of installs[1] of the same test machine with the same IP and have to ssh it you will notice this annoying message :
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that [...]

A useful svn wrapper scripts. Get a diff of your local repostitory against the upstream repository changes. I wonder why it is not builtins though like a svn status -u but for dif.

#!/bin/bash
 
IFS="
"
for line in `svn status -u`;do
[[ $line != " "* ]] && continue
rev=`echo [...]

I better to keep that somewhere since i always forget that thing, to do a search and replace from the command line in zsh. you just have to do the :s^FOO^BAR after your expansion
For example you just have typed the long command line :

blah bar FOO=1 FOO=3 FOO=6 cnt=1

you can just type :

!blah:s^FOO^VALUE^:G

and it will [...]

Get the size accurately from postgres local filesystem, i guess there is some sql stuff that can do that but that does the job as well for me :

#!/bin/bash
/usr/lib/postgresql/8.1/bin/oid2name -U postgres|while read -a e;do
name=${e[1]}
oid=${e[0]}
[[ $oid == "All" || $oid == "Oid" || -z $oid || -z $name ]] && continue
typeset -a size
size=(`du -s /var/lib/postgresql/8.1/main/base/$oid`)
size=${size[0]}
printf [...]

I am sic of spaces and having svn diff that does not get the spaces removed. So here is a simple script that does the stuff that you can use as your diff-cmd :

#!/bin/bash
for i in $@;do
echo $i |grep -q “)” && continue
echo $i |grep -q “(” && continue
t=”$t $i”
done
diff -bBw $t