Uniq Command?

Shell Programming and Scripting
1

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!

2 
awk -F"[@:]" '$2!=prev { print $2; prev=$2 }' datfile
3 
awk -F"[@:]" ' {a[$2]} END { for(e in a) print e} ' infile
4

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

5

This requires the inputfile be sorted.

6

thru sed..

sed 's/@\(.*\):.*/\1/g' inputfile |uniq > outfile
7 
 
awk -F \: '{print $1}' infile.txt|sed 's/@//g' |uniq
8

Nicely alphabetically sorted

awk -F'[@:]' '{print $2}' infile | sort -u

sed 's\@\\;s\:.*\\' infile | sort -u

No sort:

awk -F'[@:]' '!A[$2]++{print $2}' infile
9 
# sed -n 's/^@//;s/:.*//p' infile | sed -e :x -e 'N;s/\(.*\)\n\1/ \1/' -e 'tx'|sed 's/  */\n/g;s/^\n//g'
10

Just saw the same command already given.

awk -F"[@:]" '!a[$2]++{print $2}' infile
11 
 
awk -F"[@:]" '!_[$2]++{print $2}' infile

...Edit...
oh...i didn't see the replies on the second page. My bad!!!

12

Thanks, I got all the car makes put into a selection box! I want people to be able to pick a make and then pick an option. For example: Select Audi in the selection box and then have the options (warranty, price, color) in checkboxes.

I need the script to pull out the options from the file, they can't be hard coded. All the options follow the ":" For example:
@Audi:Warranty (Warranty is the option)

Thanks

13

Something like this?

awk -F'[@:]' '$2==b{print $3}' b=Audi infile