how to find two concatenate repeated lines in files
for example in this file we have only two concatenate repeated lines
OQ-63/ECC/Global/MES/CZ/adWerum-CZ-Adapter
OQ-63/ECC/Global/MES/54/ECC-MRP-S05
OQ-63/ECC/Global/MES/CZ/adWerum-CZ-Adapter
OQ-63/ECC/Global/MES/54/ECC-MRP-S05.ear
OQ-63/ECC/Global/MES/CZ/adWerum-CZ-Adapter <--
OQ-63/ECC/Global/MES/CZ/adWerum-CZ-Adapter <--
OQ-63/ECC/Global/MES/54/ECC-MRP-S05.xml
Best Answer
Uniq should be enough:
By default uniq checks adjacent lines of the input file. So for an unsorted file (like your case) uniq will do the job you want.
you might also be interested in uniq -d and -u option. See man page for more details (-d prints only one of the both duplicate lines , -u print only uniq lines - removes both duplicate entries).