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Shell Programming and Scripting
1

Hi,

I have a variable , lets say
a=/disk1/net/first.ksh

i need to grep "first.ksh"

everytime "a" gets changed dynamically and i do not know how many '"/" are there in my variable.

Can somebody help me out.

2

in awk

echo $a| awk -F/ '{print $NF}'
3

great it works....

Can you please explain me the command

4

Or simply use basename -- or if your shell understands ${a##*/} then by all means use that.

5

The awk command splits its input into the character specified by the -F option (in this case "/"). So awk sees something like:
disk1 net first.ksh
Awk has an internal variable named "NF" which stands for the Number of Fields on the current line. In this case that's 3. So it's like writing:
awk '{ print $3 '}
which would print the third field of the input. Of course, it's not really 3 every time, just this time. So the last part of the path gets printed.

6

Thanks a lot....

is that i can take

/disk/net in one variable and first.ksh in one variable ?

7

basename $a

8

can you gimme an example please ?

9

Try...

a=/disk1/net/first.ksh
b=$(basename $a)
c=$(dirname $a)
10

Thanks man