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Pattern match

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# 1  
Old 01-07-2015
parsing filenames - dynamic parsing
I have requirement of parsing file names from given directory based on the pattern ( pattern will be parameter to script and can be any ).

for example, user enterred 2 params :
1) directory name : /dirname/
2) filename_pattern : *.dat_????

and there are 2 files in the directory as :

Code:
/dirname/a.dat_1234
/dirname/b.dat_4567

now I need to parse and retrive filename with static portion :
result :
1) a.dat_
2) b.dat_

Can you please give some pointers to solution, what are the ways this can be implemented.


Thanks in advance ...

Thanks
Abhijeet R
Last edited by Don Cragun; 01-07-2015 at 02:54 PM.. Reason: Add CODE and ICODE tags.
# 2  
Old 01-07-2015
Quote:
Originally Posted by freakabhi
I have requirement of parsing file names from given directory based on the pattern ( pattern will be parameter to script and can be any ).
for example, user enterred 2 params :
1) directory name : /dirname/
2) filename_pattern : *.dat_????
and there are 2 files in the directory as :

/dirname/a.dat_1234
/dirname/b.dat_4567
now I need to parse and retrive filename with static portion :
result :
1) a.dat_
2) b.dat_
Can you please give some pointers to solution, what are the ways this can be implemented.
Thanks in advance ...
Thanks
Abhijeet R
Hello Abhijeet,

Kindly use code tags for commands/codes in your posts. Following command may help you in same.
Code:
echo "/dirname/a.dat_1234" | awk '{sub(/.*\//,X,$0);sub(/\_.*/,"_",$0);print}'

Output will be as follows.
Code:
a.dat_

Thanks,
R. Singh
# 3  
Old 01-07-2015
Quote:
Originally Posted by freakabhi
I have requirement of parsing file names from given directory based on the pattern ( pattern will be parameter to script and can be any ).

for example, user enterred 2 params :
1) directory name : /dirname/
2) filename_pattern : *.dat_????

and there are 2 files in the directory as :

Code:
/dirname/a.dat_1234
/dirname/b.dat_4567

now I need to parse and retrive filename with static portion :
result :
1) a.dat_
2) b.dat_

Can you please give some pointers to solution, what are the ways this can be implemented.


Thanks in advance ...

Thanks
Abhijeet R
I don't understand what you're trying to do. The only static data matched by the pattern *.dat_???? is .dat_. The 1st character of each filename is matched by the asterisk in the pattern and the 4 characters at the end of each filename is matched by the question marks.
This User Gave Thanks to Don Cragun For This Post:
freakabhi
# 4  
Old 01-07-2015
Moderator's Comments:
Mod Comment This is a duplicate of another thread that has already been closed as a homework violation.
This thread is closed.
This User Gave Thanks to Don Cragun For This Post:
freakabhi
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