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PS1 challenge

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# 1  
Old 10-21-2010
PS1 challenge
Ok then i Have a challenge for you :

Give me PS1 so that it always display the least 2 levels of directory
(except if i am above of course)

I want it this way :

so if i go to

Code:
/
/home/
/home/user
/home/user/whatever
/home/user/whatever1/whatever2

my PS1 should respectively show the following :

Code:
ctsgnb@challenge:/ #
ctsgnb@challenge:/home #
ctsgnb@challenge:/home/user #
ctsgnb@challenge:/.../user/whatever1 #
ctsgnb@challenge:/.../whatever1/whatever2 #

i care about the /... if i go lower than 2 level !
# 2  
Old 10-21-2010
This would be easier: While $PWDx has 3 slashes, take #?*/ off and put ...
Code:
ctsgnb@challenge:/ #
ctsgnb@challenge:/home #
ctsgnb@challenge:/home/user #
ctsgnb@challenge:.../user/whatever1 #
ctsgnb@challenge:.../whatever1/whatever2 #

something like
Code:
$(
pwdx="$PWD"
while [ "${pwdx#/*/*/" != "$pwdx" ]
do
 pwdx="${pwdx#/*}"
done
if [ "$pwdx" != "$PWD" ]
then
 pwdx=..."$pwdx"
fi
echo "$pwdx"
)

of course, quoting has to carry this all into PS1 for run time evaluation.
Last edited by DGPickett; 10-21-2010 at 05:16 PM..
# 3  
Old 10-21-2010
Easier ? where would be the fun ?
Come on guys i know you are far skilled enough to give a working solution ! Smilie
# 4  
Old 10-21-2010
Just add the slash, becasue, I found it was not easier, it just saves you a byte of precious line space, you ingrate! Smilie
# 5  
Old 10-21-2010
I long for a Scru1Liner solution proposal ... and see if he can do better Smilie
# 6  
Old 10-21-2010
I should use semicolons?
You think the world pays for byte count or maintainability?
This is no fork no exec solution!
# 7  
Old 10-21-2010
I think that the fact of doing a

Code:
cd any_dir

should not use 100% of CPU or Memory Smilie

To tell you the truth, i don't have the solution, i don't even know whether it is possible or not.Smilie
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