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Help filter content of a file

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Top Forums Shell Programming and Scripting Help filter content of a file
# 1  
Old 01-13-2010
Help filter content of a file
Hi all !

I have a file name file1 like this :

Code:
/A
/A/1
/A/2
/B
/B/3
/B/4
/tmp/C
/tmp/C/5
/tmp/C/6

I want to write a script to take content from file2 and print out to file2 only these lines :

Code:
/A
/B
/tmp/C

Can someone help ?
# 2  
Old 01-13-2010
Code:
grep -v '[0-9]$' file1

# 3  
Old 01-13-2010
Code:
grep '[A-Z]$' file1

# 4  
Old 01-14-2010
Lolz thank to jim mcnamara and xoops. Sure it works. But Im sorry that not what I mean. Number and alphabet are just an example cause I was lazy. What I meant is there's a list of parent directories and sub directories inside them. I want to list out only the parents. Here's another one :

Code:
/Cars
/Cars/Toyota
/Cars/Ford
/Planes
/Planes/Airbus
/Planes/Boeing
/Old/Ships
/Old/Ships/Titanic

I want to print out :
Code:
/Cars
/Planes
/Old/Ships

# 5  
Old 01-14-2010
try;
Code:
while read dir; do dirname $dir; done < file1 | sort | uniq

# 6  
Old 01-14-2010
Here the result :
Code:
/
/Cars
/Old
/Old/Ships
/Planes

Thanks but I dont want "/" and "/Old" printed out
# 7  
Old 01-14-2010
But this will list the directories / and /Old as well.
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