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Top Forums Shell Programming and Scripting Insert new pattern in newline after the nth occurrence of a line pattern - Bash in Ubuntu 12.04 Post 302700223 by elixir_sinari on Thursday 13th of September 2012 06:26:36 AM
Old 09-13-2012
For your info:
Code:
$ cat data.db
HHOOIOIOI
system /path1/file1 file1
          system /path1/file1 file1
/system/path
system /path1/file1 file1
dfdfdf
dfdffffffffffff
dfdf
system /path1/file1 file1

$ pattern="system /path1/file1 file1"
$ new_pattern=" data /path2/file2 file2"
$ n=1

$ awk '$0==patt{which++;if(which==n)$0=$0 RS repl}1' patt="$pattern" repl="$new_pattern" n=$n data.db
HHOOIOIOI
system /path1/file1 file1
 data /path2/file2 file2
          system /path1/file1 file1
/system/path
system /path1/file1 file1
dfdfdf
dfdffffffffffff
dfdf
system /path1/file1 file1

Is your actual pattern surrounded by blanks on either side? Do you want to match such lines?
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mv(1)							      General Commands Manual							     mv(1)

Name
       mv - move or rename files

Syntax
       mv [-i] [-f] [-] file1 file2

       mv [-i] [-f] [-] file... directory

Description
       The command moves (changes the name of) file1 to file2.

       If  file2  already  exists,  it is removed before file1 is moved.  If file2 has a mode which forbids writing, prints the mode and reads the
       standard input to obtain a line.  If the line begins with y, the move takes place.  If it does not, exits.  For further information, see

       In the second form, one or more files (plain files or directories) are moved to the directory with their original file-names.

       The command refuses to move a file onto itself.

Options
       -		   Interprets all following arguments as file names to allow file names starting with a minus.

       -f		   Force. This option overrides any mode restrictions or the -i switch.

       -i		   Interactive mode.  If a move is to supersede an existing file, the system prompts youw with the name of the	file  fol-
			   lowed  by  a question mark.	If you type a string that begins with y, the move occurs.  If you type any other response,
			   the move does not occur.

Restrictions
       If file1 and file2 lie on different file systems, must copy the file and delete the original.  In this case the owner name becomes that	of
       the copying process and any linking relationship with other files is lost.

See Also
       cp(1), ln(1)

																	     mv(1)
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