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Full Discussion: Insert few lines above a match using sed, and within a perl file.
Top Forums Shell Programming and Scripting Insert few lines above a match using sed, and within a perl file. Post 302594269 by mirni on Tuesday 31st of January 2012 01:53:31 AM
Old 01-31-2012
Please use code tags when posting sample input/output or code.

Your problem is the quotes:
Code:
sed  -i '/"$ver_match"/ i YourString'

The variable does not get expanded, because it's inside the single quotes, taken as literal. Turn the single quotes off and on:
Code:
sed  -i '/'"$ver_match"'/ i YourString'

and you should be good to go.

However this can be simplified quite a bit. All this perl stuff is not needed, since it only calls external tools (find, sed). You can do without:
Code:
v="Version 1.0"; 
str="Version 2.0.0\x0a-------------\x0a2012-01-15 - user_name\x0aprod 2.0.0"
find .  -name "VERSIONINFO" | xargs sed -i '/^'"$v"'/ i '"$str"

The \x0a is a hex code of the newline char.
xargs will feed all the files to sed as arguments, so sed is actually called like:
Code:
sed -i <command> ./path1/VERSIONINFO ./path2/VERSIONINFO ./path3/VERSIONINFO

Last edited by mirni; 01-31-2012 at 03:33 AM..
 

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LEARN ABOUT OPENSOLARIS

winsdelln

insdelln(3XCURSES)					  X/Open Curses Library Functions					insdelln(3XCURSES)

NAME

       insdelln, winsdelln - insert/delete lines to/from the window

SYNOPSIS

       cc [ flag... ] file... -I /usr/xpg4/include  -L	/usr/xpg4/lib 
	-R  /usr/xpg4/lib  -lcurses  [ library... ]

       c89 [ flag... ] file... -lcurses [ library... ]

       #include <curses.h>

       int insdelln(int n);

       int winsdelln(WINDOW *win, int n);

PARAMETERS

       n      Is the number of lines to insert or delete (positive n inserts; negative n deletes).

       win    Is a pointer to the window in which to insert or delete a line.

DESCRIPTION

       The  insdelln()	and  winsdelln() functions insert or delete blank  lines  in stdscr or win, respectively.  When n is positive, n lines are
       added before the current line  and the bottom n lines are lost; when n is negative, n lines  are deleted starting with  the  current  line,
       the remaining lines are moved up,  and the bottom n lines are cleared. The position of the cursor does not change.

RETURN VALUES

       On success, these functions return OK. Otherwise, they return ERR.

ERRORS

       None.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Unsafe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       deleteln(3XCURSES), insertln(3XCURSES), libcurses(3XCURSES), attributes(5), standards(5)

SunOS 5.11							    5 Jun 2002							insdelln(3XCURSES)
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