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List only required files in single command

 
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# 1  
Old 08-10-2015
List only required files in single command
Hello,
I would like to combine below 2 commands (list, egrep) them into a single command and list only the required files using AWK or anything else. Could you please help.

Code:
ls *FA_GL_10K_TND_HIER*dat | egrep "UPD|INS|DEL"
GL_FA_GL_10K_TND_HIER_DEL_LRF_GeneralLedgerJournalActivityCreated_1_20150810175031_8162.dat
GL_FA_GL_10K_TND_HIER_INS_LRF_GeneralLedgerJournalActivityCreated_1_20150810175031_8162.dat
GL_FA_GL_10K_TND_HIER_UPD_LRF_GeneralLedgerJournalActivityCreated_1_20150810175031_8162.dat

Thank you.
# 2  
Old 08-10-2015
How about just one ls?
Code:
ls *FA_GL_10K_TND_HIER_{UPD,INS,DEL}*dat

I fear I might not be understanding you.
# 3  
Old 08-11-2015
You might want to complement Aia's proposal with an option for leading patterns:
Code:
ls *FA_GL_10K_TND_HIER_{UPD,INS,DEL}*dat *{UPD,INS,DEL}*FA_GL_10K_TND_HIER_*dat

# 4  
Old 08-11-2015
One command?
Code:
perl -e '$\ = $, = "\n"; opendir $dh, "."; print grep { /FA_GL_10K_TND_HIER/ && ( /UPD/ || /INS/ || /DEL/ ) } readdir $dh;'

or sorted results:
Code:
perl -e '$\ = $, = "\n"; opendir $dh, "."; print sort grep { /FA_GL_10K_TND_HIER/ && ( /UPD/ || /INS/ || /DEL/ ) } readdir  $dh;'

If you don't mind using two commands:
Code:
ls -fA | awk '/FA_GL_10K_TND_HIER/ && ( /UPD/ || /INS/ || /DEL/ )'

Using ls -fA gets rid of the shell expansion which could take some time depending on the number of entries in the current directory. Or fail, if the length of the command line or the number of entries exceeds your shell's limits for either. The results would be unsorted, but that could be easily solved:
Code:
ls -fA | awk '/FA_GL_10K_TND_HIER/ && ( /UPD/ || /INS/ || /DEL/ )' | sort

Last edited by derekludwig; 08-11-2015 at 07:46 AM.. Reason: typo
 
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