Sponsored Content
Top Forums Shell Programming and Scripting how to delete duplicate rows based on last column Post 302347247 by malcomex999 on Tuesday 25th of August 2009 08:44:21 AM
Old 08-25-2009
Another way...

For the 1st one...
Code:
 
sort -n +6 infile | awk '{t[$1" "$2" "$3" "$4" "$5" "$6]=$7}END{for (i in t){print i,t[i]}}'

For the 2nd one...
Code:
 
sort -n +4 infile | awk '{t[$1" "$2" "$3" "$4]=$5" "$6" "$7}END{for (i in t){print i,t[i]}}'

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

how to delete duplicate rows in a file

I have a file content like below. "0000000","ABLNCYI","BOTH",1049,2058,"XYZ","5711002","","Y","","","","","","","","" "0000000","ABLNCYI","BOTH",1049,2058,"XYZ","5711002","","Y","","","","","","","","" "0000000","ABLNCYI","BOTH",1049,2058,"XYZ","5711002","","Y","","","","","","","",""... (5 Replies)
Discussion started by: vamshikrishnab
5 Replies

2. UNIX for Dummies Questions & Answers

Remove duplicate rows of a file based on a value of a column

Hi, I am processing a file and would like to delete duplicate records as indicated by one of its column. e.g. COL1 COL2 COL3 A 1234 1234 B 3k32 2322 C Xk32 TTT A NEW XX22 B 3k32 ... (7 Replies)
Discussion started by: risk_sly
7 Replies

3. UNIX for Dummies Questions & Answers

forming duplicate rows based on value of a key

if the key (A or B or ...others) has 4 in its 3rd column the 1st A row has to form 4 dupicates along with the all the values of A in 4th column (2.9, 3.8, 4.2) . Hope I explain the question clearly. Cheers Ruby input "A" 1 4 2.9 "A" 2 5 ... (7 Replies)
Discussion started by: ruby_sgp
7 Replies

4. Ubuntu

delete duplicate rows with awk files

Hi every body I have some text file with a lots of duplicate rows like this: 165.179.568.197 154.893.836.174 242.473.396.153 165.179.568.197 165.179.568.197 165.179.568.197 154.893.836.174 how can I delete the repeated rows? Thanks Saeideh (2 Replies)
Discussion started by: sashtari
2 Replies

5. UNIX for Dummies Questions & Answers

Remove duplicate rows when >10 based on single column value

Hello, I'm trying to delete duplicates when there are more than 10 duplicates, based on the value of the first column. e.g. a 1 a 2 a 3 b 1 c 1 gives b 1 c 1 but requires 11 duplicates before it deletes. Thanks for the help Video tutorial on how to use code tags in The UNIX... (11 Replies)
Discussion started by: informaticist
11 Replies

6. Shell Programming and Scripting

Delete duplicate rows

Hi, This is a followup to my earlier post him mno klm 20 76 . + . klm_mango unix_00000001; alp fdc klm 123 456 . + . klm_mango unix_0000103; her tkr klm 415 439 . + . klm_mango unix_00001043; abc tvr klm 20 76 . + . klm_mango unix_00000001; abc def klm 83 84 . + . klm_mango... (5 Replies)
Discussion started by: jacobs.smith
5 Replies

7. UNIX for Dummies Questions & Answers

merging rows into new file based on rows and first column

I have 2 files, file01= 7 columns, row unknown (but few) file02= 7 columns, row unknown (but many) now I want to create an output with the first field that is shared in both of them and then subtract the results from the rest of the fields and print there e.g. file 01 James|0|50|25|10|50|30... (1 Reply)
Discussion started by: A-V
1 Replies

8. Shell Programming and Scripting

awk to sum a column based on duplicate strings in another column and show split totals

Hi, I have a similar input format- A_1 2 B_0 4 A_1 1 B_2 5 A_4 1 and looking to print in this output format with headers. can you suggest in awk?awk because i am doing some pattern matching from parent file to print column 1 of my input using awk already.Thanks! letter number_of_letters... (5 Replies)
Discussion started by: prashob123
5 Replies

9. Shell Programming and Scripting

Remove duplicate rows based on one column

Dear members, I need to filter a file based on the 8th column (that is id), and does not mather the other columns, because I want just one id (1 line of each id) and remove the duplicates lines based on this id (8th column), and does not matter wich duplicate will be removed. example of my file... (3 Replies)
Discussion started by: clarissab
3 Replies

10. Shell Programming and Scripting

Extract and exclude rows based on duplicate values

Hello I have a file like this: > cat examplefile ghi|NN603762|eee mno|NN607265|ttt pqr|NN613879|yyy stu|NN615002|uuu jkl|NN607265|rrr vwx|NN615002|iii yzA|NN618555|ooo def|NN190486|www BCD|NN628717|ppp abc|NN190486|qqq EFG|NN628717|aaa HIJ|NN628717|sss > I can sort the file by... (5 Replies)
Discussion started by: CHoggarth
5 Replies
makedbm(8yp)															      makedbm(8yp)

Name
       makedbm - make a yellow pages dbm file

Syntax
       makedbm [ -i yp_input_file ] [ -o yp_output_name ] [ -d yp_domain_name ] [ -m yp_master_name ] infile outfile
       makedbm [ -u dbmfilename ]

Description
       The command takes the file specified by the argument infile and converts it to a pair of files in format, namely and Each line of the input
       file is converted to a single record.  All characters up to the first tab or space form the key, and the rest of the line is defined as the
       key's  associated data.	If a line ends with a backslash (), the data for that record is continued onto the next line.	It is left for the
       clients of the yellow pages to interpret the number sign (#); does not treat it as a comment character.	The  infile  parameter	can  be  a
       hyphen (-), in which case reads the standard input.

       The  command  is  meant	to  be	used in generating files for the yellow pages service.	The command generates a special entry with the key
       yp_last_modified, which is the date of infile.

Options
       -i     Create a special entry with the key yp_input_file.

       -o     Create a special entry with the key yp_output_name.

       -d     Create a special entry with the key yp_domain_name.

       -m     Create a special entry with the key yp_master_name.  If no master host name is specified, yp_master_name will be set  to	the  local
	      host name.

       -u     Undo a file.  That is, print out a file one entry per line, with a single space separating keys from values.

Examples
       The  following  example shows how a combination of commands can be used to make the yellow pages files and from the file.  The percent sign
       (%) signifies the system prompt.

       % awk 'BEGIN { FS = ":"; OFS = ""; }
	{ print $1, $0 }' /etc/passwd > ptmp
       % makedbm ptmp passwd.byname
       % rm ptmp

       The command creates the file ptmp which is in a form usable by The command uses the ptmp file to create the yellow pages dbm files and  The
       command removes the ptmp file.

See Also
       yppasswd(1yp), dbm(3x), ypmake(8yp)

																      makedbm(8yp)
All times are GMT -4. The time now is 01:24 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy