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Using bash to separate files files based on parts of a filename

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# 1  
Old 07-18-2012
Using bash to separate files files based on parts of a filename
Hey guys,

Sorry for the basic question but I have a lot of files that I want to separate into groups based on filenames which I can then cat together. Eg I have:

(a_b_c.txt)
WB34_2_SLA8.txt
WB34_1_SLA8.txt
WB34_1_DB10.txt
WB34_2_DB10.txt
WB34_1_SLA8.txt
WB34_2_SLA8.txt
77_1_SLA8.txt
77_1_DB10.txt
77_2_SLA8.txt
77_1_SLA8.txt
....

Im keen on using either find or a simple bash command to separate files into either groups based on either a or c etc, but I can't seem to work out how to specificallt reference a certain part of the filename. Would like to cat together say, [ cat 77_1_SLA8.txt and 77_2_SLA8.txt > 77_SLA8.txt ] (ie. based on the b value).

Any ideas?
# 2  
Old 07-19-2012
try wild characters
Code:
cat 77_?_SLA8.txt > 77_SLA8.txt

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