Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: compare two files and make 1st file same as 2nd file
Top Forums Shell Programming and Scripting compare two files and make 1st file same as 2nd file Post 302227406 by manosubsulo on Thursday 21st of August 2008 06:48:06 AM
Old 08-21-2008
HI.. Check the below code for compare two files.

rm -f c.txt
t=`sdiff a.txt b.txt | grep "|" | wc -l`
if [ $t -eq 0 ]
then
echo "File are same"
else
echo "Hi"
sdiff a.txt b.txt | grep "|" | nawk '{
s = sprintf("%s/%s/g",$1,$3);
print s;
}' >> c.txt

cnt=1
str=" "
for i in `cat c.txt`
do
if [ "$cnt" -eq "1" ]
then
cnt=`expr $cnt + 1`
sed 's/'"$i"'' a.txt >> d.txt
else
cnt=`expr $cnt + 1`
sed 's/'"$i"'' d.txt >> d.txt
fi
done

p=`cat a.txt | wc -l | awk '{print $1}'`
echo $p
tail -$p d.txt > c.txt
rm -f d.txt
fi

Note:
Above code works only when both the files are same line.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

how to attach a variable from the 2nd file to the 1st file

Hi all, I am a newbie in unix shell script world. Say, I have a list of devices in file01 and then also have file02 with the list of the location. I need to telnet to each devices in file01 and set the location according to file02. Example: #cat file01 ttnpx01 ttnpx02 nncrd01 nncrd02... (5 Replies)
Discussion started by: lo tan
5 Replies

2. Shell Programming and Scripting

file compare and make a new file

Hi, I need to make a file3 from the comparision of file1 and file2... file1 x1,x2,x3,x4 file2 y1,y2,y3,y4 if (x2=y3) then file3 x1,x3,y1,y3,y4 Thanks (11 Replies)
Discussion started by: yale_work
11 Replies

3. Shell Programming and Scripting

Compare - 1st col of file

Hi, I have two different files, one has two columns and other has only one column. I would like to compare the first column in the first file with the data in the second file and write a third file with the data that is not present is not common to them. First file:... (26 Replies)
Discussion started by: swame_sp
26 Replies

4. UNIX for Dummies Questions & Answers

compare 2 file contents , if same delete 2nd file contents

Give shell script....which takes two file names as input and compares the contents, is both are same delete second file's contents..... I try with "diff"...... but confusion how to use "diff" with if ---else Thanking you (5 Replies)
Discussion started by: krishnampkkm
5 Replies

5. UNIX for Dummies Questions & Answers

Compare 2 files print the lines of file 2 that contain a string from file 1

Hello I am a new unix user, and I have a work related task to compare 2 files and print all of the lines in file 2 that contain a string from file 1 Note: the fields are in different columns in the files. I suspect the is a good use for awk? Thanks for your time & help File 1 123 232 W343... (6 Replies)
Discussion started by: KevinRidley
6 Replies

6. Shell Programming and Scripting

Grep/Awk on 1st 2 Letters in 2nd Column of File

Hi everyone. I need to change a script (ksh) so that it will grep on the 1st 2 letters in the second column of a 5 column file such as this one: 192.168.1.1 CAXY0_123 10ABFL000001 # Comment 192.168.1.2 CAYZ0_123 10ABTX000002 # Comment 192.168.2.1 FLXY0_123 11ABCA000001 ... (4 Replies)
Discussion started by: TheNovice
4 Replies

7. Shell Programming and Scripting

Appending information from 2nd file into 1st based on intervals

Hi, I am trying to gather information from the second file and append it to the first file. input HWUSI-EAS000_29:1:100:10000:11479#0/1 + chr5 14458050 ATTGGCTGAGGTCCTACTAGTTGTGATGTGTAAGTGT HHHHHHGDGGEDGGGDGCGEDDEFFFAGE 0 second file:... (14 Replies)
Discussion started by: Diya123
14 Replies

8. Shell Programming and Scripting

How to read file line by line and compare subset of 1st line with 2nd?

Hi all, I have a log file say Test.log that gets updated continuously and it has data in pipe separated format. A sample log file would look like: <date1>|<data1>|<url1>|<result1> <date2>|<data2>|<url2>|<result2> <date3>|<data3>|<url3>|<result3> <date4>|<data4>|<url4>|<result4> What I... (3 Replies)
Discussion started by: pat_pramod
3 Replies

9. Shell Programming and Scripting

How to compare 2 files and create a result file with unmatched lines from first file.?

HI, I have 2 text files. file1 and file2. file1.txt (There are no duplicates in this file) 1234 3232 4343 3435 6564 6767 1213 file2.txt 1234,wq,wewe,qwqw 1234,as,dfdf,dfdf 4343,asas,sdds,dsds 6767,asas,fdfd,fdffd I need to search each number in file1.txt in file2.txt's 1st... (6 Replies)
Discussion started by: Little
6 Replies

10. UNIX for Beginners Questions & Answers

Compare 1st column from 2 file and if match print line from 1st file and append column 7 from 2nd

hi I have 2 file with more than 10 columns for both 1st file apple,0,0,0...... orange,1,2,3..... mango,2,4,5..... 2nd file apple,2,3,4,5,6,7... orange,2,3,4,5,6,8... watermerlon,2,3,4,5,6,abc... mango,5,6,7,4,6,def.... (1 Reply)
Discussion started by: tententen
1 Replies

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)
All times are GMT -4. The time now is 11:44 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy