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Full Discussion: Replacing lines matching a multi-line pattern (sed/perl/awk)
Top Forums Shell Programming and Scripting Replacing lines matching a multi-line pattern (sed/perl/awk) Post 302890071 by thefang on Tuesday 25th of February 2014 04:07:55 AM
Old 02-25-2014
Thank you all for your replies!

In response to Don's questions: This input file...
Code:
@LIB ADVAPI32.dll @CAL RtlInitAnsiString @PA1 0x0012f740 @PA2 "CriticalSectionTimeout" @RET0 
@LIB ADVAPI32.dll @CAL RtlInitAnsiString @PA1 0x0012f740 @PA2 "CriticalSectionTimeout" @RET0 
@LIB ADVAPI32.dll @CAL BlaCall @PA1 0x0012f741 @PA2 0x0012f68c @PA3 4 @RET 0x0012f8bc 
@LIB ADVAPI32.dll @CAL memmove @PA1 0x0012f740 @PA2 0x0012f68c @PA3 4 @RET 0x0012f8bc 
@LIB ADVAPI32.dll @CAL RtlAnsiStringToUnicodeString @PA1 0x7ffdfbf8 @PA2 0x0012f740 @PA3 FALSE @RET STATUS_SUCCESS

...should turn into this (minimal "destruction"):
Code:
@LIB ADVAPI32.dll @CAL RtlInitAnsiString @PA1 0x0012f740 @PA2 "CriticalSectionTimeout" @RET0 
@MATCH
@LIB ADVAPI32.dll @CAL RtlAnsiStringToUnicodeString @PA1 0x7ffdfbf8 @PA2 0x0012f740 @PA3 FALSE @RET STATUS_SUCCESS

If there are more than 3 newlines in between the first and second part of the pattern, nothing should happen. The replacement should only be executed as long as the "maximum gap" is not exceeded (in this case 3). So if the input file would look like this:
Code:
@LIB ADVAPI32.dll @CAL RtlInitAnsiString @PA1 0x0012f740 @PA2 "CriticalSectionTimeout" @RET0 
@LIB ADVAPI32.dll @CAL memmove @PA1 0x0012f740 @PA2 0x0012f68c @PA3 4 @RET 0x0012f8bc 
@LIB ADVAPI32.dll @CAL RtlInitAnsiString @PA1 0x0012f740 @PA2 "CriticalSectionTimeout" @RET0 
@LIB ADVAPI32.dll @CAL BlaCall @PA1 0x0012f741 @PA2 0x0012f68c @PA3 4 @RET 0x0012f8bc 
@LIB ADVAPI32.dll @CAL memmove @PA1 0x0012f740 @PA2 0x0012f68c @PA3 4 @RET 0x0012f8bc 
@LIB ADVAPI32.dll @CAL RtlInitAnsiString @PA1 0x0012f740 @PA2 "CriticalSectionTimeout" @RET0 
@LIB ADVAPI32.dll @CAL RtlAnsiStringToUnicodeString @PA1 0x7ffdfbf8 @PA2 0x0012f740 @PA3 FALSE @RET STATUS_SUCCESS
@LIB ADVAPI32.dll @CAL RtlAnsiStringToUnicodeString @PA1 0x7ffdfbf8 @PA2 0x0012f740 @PA3 FALSE @RET STATUS_SUCCESS
@LIB ADVAPI32.dll @CAL RtlAnsiStringToUnicodeString @PA1 0x7ffdfbf8 @PA2 0x0012f740 @PA3 FALSE @RET STATUS_SUCCESS
@LIB ADVAPI32.dll @CAL RtlAnsiStringToUnicodeString @PA1 0x7ffdfbf8 @PA2 0x0012f740 @PA3 FALSE @RET STATUS_SUCCESS
@LIB ADVAPI32.dll @CAL RtlAnsiStringToUnicodeString @PA1 0x7ffdfbf8 @PA2 0x0012f740 @PA3 FALSE @RET STATUS_SUCCESS
@LIB ADVAPI32.dll @CAL RtlAnsiStringToUnicodeString @PA1 0x7ffdfbf8 @PA2 0x0012f740 @PA3 FALSE @RET STATUS_SUCCESS
@LIB ADVAPI32.dll @CAL RtlAnsiStringToUnicodeString @PA1 0x7ffdfbf8 @PA2 0x0012f740 @PA3 FALSE @RET STATUS_SUCCESS
@LIB ADVAPI32.dll @CAL RtlAnsiStringToUnicodeString @PA1 0x7ffdfbf8 @PA2 0x0012f740 @PA3 FALSE @RET STATUS_SUCCESS
@LIB ADVAPI32.dll @CAL RtlAnsiStringToUnicodeString @PA1 0x7ffdfbf8 @PA2 0x0012f740 @PA3 FALSE @RET STATUS_SUCCESS
@LIB ADVAPI32.dll @CAL RtlAnsiStringToUnicodeString @PA1 0x7ffdfbf8 @PA2 0x0012f740 @PA3 FALSE @RET STATUS_SUCCESS
@LIB ADVAPI32.dll @CAL memmove @PA1 0x0012f740 @PA2 0x0012f68c @PA3 4 @RET 0x0012f8bc

...the script should NOT replace the large block of "RtlAnsiStringToUnicodeString".

Thanks again!
 

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LEARN ABOUT CENTOS

cal

CAL(1)								   User Commands							    CAL(1)

NAME

       cal - display a calendar

SYNOPSIS

       cal [options] [[[day] month] year]

DESCRIPTION

       cal displays a simple calendar.	If no arguments are specified, the current month is displayed.

OPTIONS

       -1, --one
	      Display single month output.  (This is the default.)

       -3, --three
	      Display prev/current/next month output.

       -s, --sunday
	      Display Sunday as the first day of the week.

       -m, --monday
	      Display Monday as the first day of the week.

       -j, --julian
	      Display Julian dates (days one-based, numbered from January 1).

       -y, --year
	      Display a calendar for the current year.

       -V, --version
	      Display version information and exit.

       -h, --help
	      Display help screen and exit.

PARAMETERS

       A single parameter specifies the year (1 - 9999) to be displayed; note the year must be fully specified: cal 89 will not display a calendar
       for 1989.

       Two parameters denote the month (1 - 12) and year.

       Three parameters denote the day (1-31), month and year, and the day will be highlighted if the calendar is displayed on a terminal.  If	no
       parameters are specified, the current month's calendar is displayed.

       A year starts on Jan 1. The first day of the week is determined by the locale.

       The Gregorian Reformation is assumed to have occurred in 1752 on the 3rd of September. By this time, most countries had recognized the ref-
       ormation (although a few did not recognize it until the early 1900's). Ten days following that date were eliminated by the reformation,	so
       the calendar for that month is a bit unusual.

HISTORY

       A cal command appeared in Version 6 AT&T UNIX.

AVAILABILITY

       The cal command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.

util-linux							     June 2011								    CAL(1)
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