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Full Discussion: Need a program that read a file line by line and prints out lines 1, 2 & 3 after an empty line...
Top Forums Shell Programming and Scripting Need a program that read a file line by line and prints out lines 1, 2 & 3 after an empty line... Post 302907419 by Ferocci on Friday 27th of June 2014 05:02:41 PM
Old 06-27-2014
Hello gandolf989,

Tried your command with no luck at all, maybe I am doing something wrong:

Code:
$ egrep -A3 "^$" | grep -v "^$"
^C
$ egrep -A3 "^$" 20140624-swerrs| grep -v "^$"
$ egrep -A3 "^$" | grep -v "^$" 20140624-swerrs

SRVXPAPI001     ERRO    JUN24 07:09:09 0140      
        REASON= 0000, PROCID= #E59C #1011: CALLP, INDEX= 2BAD
        056D0B44=CCSMUI.AO08:CCSM_ERR+#0064 
        056C6CB4=MTXCBTG.AO16:MTX_HOLD_C+#08B4 
        024AB1A4=FTRUTLUI.DI01:HANDLE_H+#1144 
        024AC2A4=FTRUTLUI.DI01:HELD_SUP+#0544 
        024ACA1C=FTRUTLUI.DI01:HOLD+#019C 
        024ACDF4=FTRUTLUI.DI01:HOLDCONN+#0294 
        024B3068=FTRNETUI.DK01:FLIPFLOP+#0108 
        05BC048C=MTXCWTEV.CU03:CW_TALKI+#048C 
        049AC2EC=MTXCWTUI.CR07:MTX_CWT_INVOKE_HANDLER+#006C 
        049E4350=MTXCWTEV.CU03:CW_REALE+#0550
 
SRVXPAPI001     ERRO    JUN24 07:28:34 1775      
        REASON= 0000, PROCID= #E506 #1065: TPCIPPR, INDEX= 003F
        00637BDC=IOCPBASE.BS01:CHECK_TID+#009C 
        0063A48C=IOCPBASE.BS01:READTRMNLSTATE+#002C 
        04D1C92C=CMAIFIH.BI03:AIF_CP_M+#05AC 
        00592F8C=MTSKERN.CY02:FORWARD_+#026C 
        0235EB54=MTSKERN.CY02:MTS_RECEIVE_P+#0354 
        0157C0DC=NFN59MOD.AB01:MTS_IRM_UDP_RX+#005C 
        0065B3A4=SCAIPPI.AK01:TPC_UDP_+#00C4 
        00658420=SCAIPPI.AK01:TPCIP_INCOMING_MSG_HANDLER_O+#0340 
        00656FA4=SCAIPPI.AK01:SCA_POLL+#0104 
        006579D8=SCAIPPI.AK01:TPCIP_INCOMING_MSG_HANDLER+#0058
 
SRVXPAPI001     ERRO    JUN24 07:28:41 2362      
        REASON= 0000, PROCID= #E506 #1065: TPCIPPR, INDEX= 003F
        00637BDC=IOCPBASE.BS01:CHECK_TID+#009C 
        0063A48C=IOCPBASE.BS01:READTRMNLSTATE+#002C 
        04D1C92C=CMAIFIH.BI03:AIF_CP_M+#05AC 
        00592F8C=MTSKERN.CY02:FORWARD_+#026C 
        0235EB54=MTSKERN.CY02:MTS_RECEIVE_P+#0354 
        0157C0DC=NFN59MOD.AB01:MTS_IRM_UDP_RX+#005C 
        0065B3A4=SCAIPPI.AK01:TPC_UDP_+#00C4 
        00658420=SCAIPPI.AK01:TPCIP_INCOMING_MSG_HANDLER_O+#0340 
        00656FA4=SCAIPPI.AK01:SCA_POLL+#0104 
        006579D8=SCAIPPI.AK01:TPCIP_INCOMING_MSG_HANDLER+#0058

 

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LEARN ABOUT OPENDARWIN

zgrep

ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  is used to invoke the grep on compress'ed or gzip'ed files. All options specified are passed directly to grep.  If no file is speci-
       fied, then the standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed	if  necessary  and
       fed to grep.

       If  zgrep  is invoked as zegrep or zfgrep then egrep or fgrep is used instead of grep.  If the GREP environment variable is set, zgrep uses
       it as the grep program to be invoked. For example:

	   for sh:  GREP=fgrep	zgrep string files
	   for csh: (setenv GREP fgrep; zgrep string files)

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), egrep(1), fgrep(1), zdiff(1), zmore(1), znew(1), zforce(1), gzip(1), gzexe(1)

																	  ZGREP(1)
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