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Full Discussion: Trouble using awk command
Top Forums Shell Programming and Scripting Trouble using awk command Post 302929531 by Ravindra Swan on Monday 22nd of December 2014 12:43:36 PM
Old 12-22-2014
Trouble using awk command
Hi,

I have 2 .txt pads containing data.
I need a script which reads content of one .txt file, performs some operations and calculates a number which is stored in a variable.
Now , all the content of another .txt pad should be appended to first .txt pad at pre calculated nth line number.

Below is sample data and commands i tried
Code:
> cat temp.dml
record
  decimal("\x01") lst_updt_run_id; /* INTEGER NOT NULL*/
decimal("\x01") invalid_data;
end;
 
cat > t.txt
this is the first line
[[this is second line]]
. h.ksh
 
expected O/P: If want to append at 1st line
 
this is the first line
[[this is second line]]
. h.ksh
record
  decimal("\x01") lst_updt_run_id; /* INTEGER NOT NULL*/
decimal("\x01") invalid_data;
end;
 
tried code:
> awk 'NR==1{file="t.txt";while ((getline<file) > 0) {print}}1' temp.dml | uniq
this is the first line
[[this is second line]]
. h.ksh
  decimal("\x01") lst_updt_run_id; /* INTEGER NOT NULL*/
decimal("\x01") invalid_data;
end;

there were couple of issues faced:
1. I tried matching NR with a variable which contains the line position to append but it was not working.
2.Last row of second .txt pad is repeating and hence i used uniq keyword.

Any solutions to this?
 

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LEARN ABOUT REDHAT

unix2dos

unix2dos(1)						      General Commands Manual						       unix2dos(1)

NAME

       unix2dos - UNIX to DOS text file format converter

SYNOPSYS

       unix2dos [options] [-c convmode] [-o file ...] [-n infile outfile ...]

       Options:

       [-hkqV] [--help] [--keepdate] [--quiet] [--version]

DESCRIPTION

       This manual page documents unix2dos, the program that converts text files in UNIX format to DOS format.

OPTIONS

       The following options are available:

       -h --help
	      Print online help.

       -k --keepdate
	      Keep the date stamp of output file same as input file.

       -q --quiet
	      Quiet mode. Suppress all warning and messages.

       -V --version
	      Prints version information.

       -c --convmode convmode
	      Sets conversion mode. Simulates unix2dos under SunOS.

       -o --oldfile file ...
	      Old file mode. Convert the file and write output to it. The program default to run in this mode. Wildcard names may be used.

       -n --newfile infile outfile ...
	      New  file  mode.	Convert the infile and write output to outfile. File names must be given in pairs and wildcard names should NOT be
	      used or you WILL lost your files.

EXAMPLES

       Get input from stdin and write output to stdout.

	      unix2dos

       Convert and replace a.txt. Convert and replace b.txt.

	      unix2dos a.txt b.txt

	      unix2dos -o a.txt b.txt

       Convert and replace a.txt in ASCII conversion mode.  Convert and replace b.txt in ISO conversion mode.

	      unix2dos a.txt -c iso b.txt

	      unix2dos -c ascii a.txt -c iso b.txt

       Convert and replace a.txt while keeping original date stamp.

	      unix2dos -k a.txt

	      unix2dos -k -o a.txt

       Convert a.txt and write to e.txt.

	      unix2dos -n a.txt e.txt

       Convert a.txt and write to e.txt, keep date stamp of e.txt same as a.txt.

	      unix2dos -k -n a.txt e.txt

       Convert and replace a.txt. Convert b.txt and write to e.txt.

	      unix2dos a.txt -n b.txt e.txt

	      unix2dos -o a.txt -n b.txt e.txt

       Convert c.txt and write to e.txt. Convert and replace a.txt.  Convert and replace b.txt. Convert d.txt and write to f.txt.

	      unix2dos -n c.txt e.txt -o a.txt b.txt -n d.txt f.txt

DIAGNOSTICS

BUGS

       The program does not work properly under MSDOS in stdio processing mode.  If you know why is that so, please tell me.

AUTHOR

       Benjamin Lin - ( blin@socs.uts.edu.au )

MISCELLANY

       Tested environment:

	      Linux 1.2.0 with GNU C 2.5.8

	      SunOS 4.1.3 with GNU C 2.6.3

	      MS-DOS 6.20 with Borland C++ 4.02

       Suggestions and bug reports are welcome.

SEE ALSO

       dos2unix(1)

1995.03.31							   unix2dos v2.2						       unix2dos(1)
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