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Full Discussion: Compare files using awk
Top Forums Shell Programming and Scripting Compare files using awk Post 302650753 by Mary James on Monday 4th of June 2012 07:18:46 AM
Old 06-04-2012
Compare files using awk

Please help me to compare two files and remove the items in file2 from file1

file 1:delimited using pipe(|)

file1
Code:
 
00012|Description - 1|||||AA12345|1|AB12345|2|2012/06/03
AB123|Description - 2|||||AA12345|3|ZA11111|4|2012/06/04
11111|Description - 3|||||AP00012|1|AB12345|2|2012/06/03
ABCDE|Description,description - 4|||||PA12345|10|AB12345|20|2012/06/03

file2
Code:
 
11111
o1234
00012

Expected output

output
Code:
 
AB123|Description - 2|||||AA12345|3|ZA11111|4|2012/06/04
11111|Description - 3|||||AP00012|1|AB12345|2|2012/06/03
ABCDE|Description,description - 4|||||PA12345|10|AB12345|20|2012/06/03

Here output doesnot contain first row in file1(row containing 00012) since file2 contains 00012. Comparioson should happen between first item in file1 and item in file2.So even if 00012 is present in the 3rd row ,it is not removed

Also, is there any way to direct the removed rows/items to another output file
 

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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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