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Shell Programming and Scripting

single line command

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# 1  
Old 02-07-2007
single line command
i need to search for a single pattern in three different logs....what would be the best one line script????
# 2  
Old 02-07-2007
Code:
grep "pattern" log1 log2 log3

# 3  
Old 02-07-2007
but i want to differentiate results got from each of the logs...the above command will display all the results in one screen :-(

eg:
log1
results
log2
results
log3
results
# 4  
Old 02-07-2007
you have the results differentiated with the output of grep itself

Code:
grep pattern l1 l2 l3

Code:
l1: pattern
l2: pattern
l3: pattern

# 5  
Old 02-07-2007
Code:
grep "pattern" log1 log2 log3 | 
awk -F: ' { if ( file != $1 ) { file=$1; print file } sub(/^[^:]*:/,"",$0);print $0 } '

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