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PS1 challenge


 
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Top Forums Shell Programming and Scripting PS1 challenge
# 8  
Old 10-21-2010
Sure, I did it, give it a try.

You don't want it to destroy your ability to type the next command.
# 9  
Old 10-21-2010
Code:
# PS1=$(pwdx="$PWD" ; while [ "${pwdx#/*/*/" != "$pwdx" ] ; do pwdx="${pwdx#/*}" ; done ;if [ "$pwdx" != "$PWD" ] ; then pwdx=..."$pwdx" ; fi ; echo "$pwdx")
ksh: "${pwdx#/*/*/": bad substitution



---------- Post updated at 11:50 PM ---------- Previous update was at 11:49 PM ----------



... and my PS1 got ******* ... Scott , like this it's ok : it is as secret as a password Smilie

Last edited by ctsgnb; 10-21-2010 at 08:06 PM.. Reason: Scottn censor
# 10  
Old 10-21-2010
OK, let's give it a try Smilie in bash:
Code:
PS1="\u@\h:"'$([ "$PWD" != "${PWD%/*/*/*}" ] && echo "/...${PWD##${PWD%/*/*}}" || echo "$PWD")\$ '



---------- Post updated at 00:41 ---------- Previous update was at 00:28 ----------

ksh:
Code:
PS1="$(whoami)@$(hostname):"'$([ "$PWD" != "${PWD%/*/*/*}" ] && echo "/...${PWD##${PWD%/*/*}}" || echo "$PWD")\$ '

# 11  
Old 10-21-2010
@Srcut1Linizer

i validate your solution, that one worked :

Code:
PS1=$LOGNAME@$(hostname):'$([ "$PWD" != "${PWD%/*/*/*}" ] && echo "/...${PWD##${PWD%/*/*}}" || echo "$PWD")\$ '

...maybe i should have asked for /dir/.../dir instead of /.../dir/dir :

Code:
PS1=$LOGNAME@$(hostname):'$([ "$PWD" != "${PWD%/*/*/*}" ] && echo "${PWD%%${PWD#/*/}}...${PWD##${PWD%/*}}" || echo "$PWD")\$ '

Smilie

Last edited by ctsgnb; 10-21-2010 at 09:00 PM..
# 12  
Old 11-09-2010
If in ksh you could always add this in your .kshrc:
Code:
CD(){
if [ $# -ne 0 ]
  then
    cd $1
  else
    cd $HOME
  fi
PS1="`uname -n`:..`echo $PWD | awk -F/ '{print $(NF-1)"/"$NF}'` > "
}
alias cd=CD

# 13  
Old 11-09-2010
It's nicer if generating PS1 does not fork or exec!
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