i have log file below. I need to grep all the lines which has word "MOD", "DEL" only from the file. can someone help me, with the grep command. i tried with the command below and i can only grep lines with the word "MOD" not DEL as well.. Can someone help me. tail -f <filename> | egrep '(MOD|DEL)' sample log file:- conn=105611 op=38083 msgId=38084 - EXT oid="1.3.6.1.4.1.42.2.27.9.6.8" conn=105611 op=0 msgId=38084 - MOD dn="uid=cpb4tpz1,ou=users,o=dhl.com" conn=105611 op=0 msgId=38084 - RESULT err=0 tag=103 nentries=0 etime=0 csn=4c6c19c100020c1d0000 conn=105611 op=38083 msgId=38084 - RESULT err=0 tag=120 nentries=0 etime=0 conn=105611 op=38084 msgId=38085 - EXT oid="1.3.6.1.4.1.42.2.27.9.6.5" conn=108681 op=0 msgId=95 - MOD dn="cn=asia,cn=mydigi.maxis.com.my, conn=108681 op=0 msgId=95 - RESULT err=0 tag=103 nentries=0 etime=0 csn=4c6b9b0a00170c1e0000 conn=108681 op=94 msgId=95 - RESULT err=0 tag=120 nentries=0 etime=0 conn=108681 op=95 msgId=96 - EXT oid="1.3.6.1.4.1.42.2.27.9.6.5" conn=105611 op=0 msgId=38084 - ADD dn="uid=user1,ou=users,o=dhl.com" conn=108681 op=0 msgId=95 - RESULT err=0 tag=103 nentries=0 etime=0 csn=4c6b9b0a00170c1e0000 conn=108681 op=94 msgId=95 - RESULT err=0 tag=120 nentries=0 etime=0 conn=108681 op=95 msgId=96 - EXT oid="1.3.6.1.4.1.42.2.27.9.6.5" conn=105611 op=0 msgId=38084 - MOD dn="uid=user1,ou=users,o=dhl.com"

In reply to What is the grep command ??? by anakin30

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