Shell Programming and Scripting

Hello, I have a file with a list of car makes and specific information for each make. An example is:

@Audi:Warranty
@Audi:Pricing
@Audi:Colors
@Acura:Warranty
@Acura:Pricing
@Acura:Colors

and so on through a bunch of makes. I need to make a list in a selection box of just one name of each make. For example:

Audi
Acura
BMW
Buick

Any help is muchly appreciated! Thanks!

Code:

awk -F"[@:]" '$2!=prev { print $2; prev=$2 }' datfile

Code:

awk -F"[@:]" ' {a[$2]} END { for(e in a) print e} ' infile

My solution keeps records in order of file - if this is important.

This requires the inputfile be sorted.

thru sed..

Code:

sed 's/@\(.*\):.*/\1/g' inputfile |uniq > outfile

Code:

 
awk -F \: '{print $1}' infile.txt|sed 's/@//g' |uniq