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Geeting only required Data

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Geeting only required Data UNIX Help forum discussing the Unix Operating System and all variants including Irix, Solarix, and AIX. Unix was designed as a true multi-user operating system.

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  #1  
Old September 11th, 2006, 06:37 AM
gkrishnag gkrishnag is offline
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Geeting only required Data
I have a file:
gk@dev1:~> cat more.txt
iam :here home/usr/bin
iam :here home/usr
iam :here help/home/bin
iam :here home/bin/var

i want to cut the some of the letters from the above file and print only the last letters like
my data would be
bin
usr
bin
var

How do i do that?

any one ..need help?
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  #2  
Old September 11th, 2006, 11:59 AM
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mu mu is offline
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The easiest way is probably to replace all of the / with white space then print the last column.

Code:
sed -e 's/\// /g' test.txt | awk '{print $NF}'
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Old September 12th, 2006, 03:48 AM
Verletto Verletto is offline
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No need to change the delimiter, just specify it:

Code:
awk '{FS="/";print $NF}' file
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  #4  
Old September 12th, 2006, 05:15 AM
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mu mu is offline
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Quote:
Originally Posted by Verletto
No need to change the delimiter, just specify it:

Code:
awk '{FS="/";print $NF}' file


I decided against that, because the file does not necessarily have to contain a /.

i.e.

Code:
iam :here home/usr/bin
iam :here help/home/bin
iam :here home
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  #5  
Old September 12th, 2006, 09:56 AM
ghostdog74 ghostdog74 is offline
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Quote:
Originally Posted by gkrishnag
I have a file:
gk@dev1:~> cat more.txt
iam :here home/usr/bin
iam :here home/usr
iam :here help/home/bin
iam :here home/bin/var

i want to cut the some of the letters from the above file and print only the last letters like
my data would be
bin
usr
bin
var

How do i do that?

any one ..need help?


Parsing of strings/text is very easy, in Python.
Code:
>>> for lines in open("more.txt"):
... 	os.path.split(lines.split()[-1])[-1]
... 
'bin'
'bin'
'home'
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  #6  
Old September 12th, 2006, 10:46 AM
SimonJM SimonJM is offline
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Very interesting, but not the output I woudl have expected - should it not have returned:

Code:
bin
usr
bin
var

from that input file?
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  #7  
Old September 12th, 2006, 06:51 PM
ghostdog74 ghostdog74 is offline
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Quote:
Originally Posted by SimonJM
Very interesting, but not the output I woudl have expected - should it not have returned:

Code:
bin
usr
bin
var

from that input file?


I had a different input file for testing, and pasted the wrong output.

Code:
>>> for lines in open("more.txt"):
... 	print os.path.split(lines.split()[-1])[-1]
... 
bin
usr
bin
var
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