Sponsored Content
Top Forums Shell Programming and Scripting I want to find the difference between two files, only for the header (column names) Post 302916592 by gull04 on Thursday 11th of September 2014 03:10:08 AM
Old 09-11-2014
Hi,

To utilise the method that I've used you'll have to increase the number of column variables and loops to match your first input file. Which is more than the four or so that I was expecting, I have tested this and it will remove the data as required, so you can just increase the initial declarations and for loop count. You'll also have to change the field delimiter to a semicolon.

Not very elegant, but it will work.

Regards

Dave

Last edited by gull04; 09-11-2014 at 04:11 AM.. Reason: Additional info.
This User Gave Thanks to gull04 For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Column names in flat files

Hi all, I want to create column names in a flat file and then load the data through some other application. For example, I have a file with emp.txt and I need column names as eno,ename,sal in the first line. The delimiter here is comma and record delimiter is end of line or unix new line. Could... (1 Reply)
Discussion started by: srivsn
1 Replies

2. Shell Programming and Scripting

script to compare first column of two files and find difference

Hi, I want to write a script which will compare the 1st column of both the files and will give the difference. e.g:- my 1st file contains: 89 /usr 52 /usr/local 36 /tmp 92 /opt 96 /home 27 /etc/opt/EMCom 1 ... (3 Replies)
Discussion started by: adityam
3 Replies

3. Shell Programming and Scripting

find difference in file column...

Hi All, i have a file that is tab delimited. i need help to find the rows which are having same price based on the site code but some times, there are difference so i need to find only the records which are different in all site code. Dept Sec Barcode 10001 10002 10003 10004... (1 Reply)
Discussion started by: malcomex999
1 Replies

4. Shell Programming and Scripting

Rename a header column by adding another column entry to the header column name URGENT!!

Hi All, I have a file example.csv which looks like this GrpID,TargetID,Signal,Avg_Num CSCH74_1_1,2007,61,256 CSCH74_1_1,212007,647,679 CSCH74_1_1,12007,3,32 CSCH74_1_1,207,299,777 I want the output as GrpID,TragetID,Signal-CSCH74_1_1,Avg_Num CSCH74_1_1,2007,61,256... (4 Replies)
Discussion started by: Vavad
4 Replies

5. UNIX for Dummies Questions & Answers

Rename a header column by adding another column entry to the header column name

Hi All, I have a file example.csv which looks like this GrpID,TargetID,Signal,Avg_Num CSCH74_1_1,2007,61,256 CSCH74_1_1,212007,647,679 CSCH74_1_1,12007,3,32 CSCH74_1_1,207,299,777 I want the output as GrpID,TragetID,Signal-CSCH74_1_1,Avg_Num CSCH74_1_1,2007,61,256... (1 Reply)
Discussion started by: Vavad
1 Replies

6. UNIX for Dummies Questions & Answers

Find the average based on similar names in the first column

I have a table, say this: name1 num1 num2 num3 num4 name2 num5 num6 num7 num8 name3 num1 num3 num4 num9 name2 num8 num9 num1 num2 name2 num4 num5 num6 num4 name4 num4 num5 num7 num8 name5 num1 num3 num9 num7 name5 num6 num8 num3 num4 I want a code that will sort my data according... (4 Replies)
Discussion started by: FelipeAd
4 Replies

7. Shell Programming and Scripting

Script to find difference between 2 files by column

Hi , i am newbie to shell scripting and am trying to do the below job, A shell script to be run with a command like sh Compare.ksh file1.txt file2.txt 1 2 > file3.txt 1 2-are the key columns Consider the delimiter would be Tab or comma File 1: SK TEST NAME MATHS PHYSICS 21 1... (1 Reply)
Discussion started by: shakthi666
1 Replies

8. Homework & Coursework Questions

Script to find difference between 2 files by column

Hi , i am newbie to shell scripting and am trying to do the below job, A shell script to be run with a command like sh Compare.ksh file1.txt file2.txt 1 2 > file3.txt 1 2-are the key columns Consider the delimiter would be Tab or comma File 1: SK TEST NAME MATHS PHYSICS 21 1 AAA... (1 Reply)
Discussion started by: shakthi666
1 Replies

9. Shell Programming and Scripting

How to get difference of the same column between two files when other column matches?

File 1: 20130416,235800,10.78.25.104,BR2-loc,60.0,1624,50.0,0,50.0,0 20130416,235800,10.78.25.104,BR1-LOC,70.0,10,50.0,0,70.0,0 20130416,235800,10.78.25.104,Hub_None,60.0,15,60.0,0,50.0,0 File 2: 20130417,000200,10.78.25.104,BR2-loc,60.0,1626,50.0,0,50.0,0... (3 Replies)
Discussion started by: Lakshmikumari
3 Replies

10. Shell Programming and Scripting

Prefix a variable in the first column of all the records of the files with and without header

In a bash shell, I have to prefix a variable to two .CSV files File1.CSV and File2.CSV. One of the files has a header and the other one is with no header in the below format: "value11","value12","value13","value14","value15","value16" "value21","value22","value23","value24","value25","value26"... (7 Replies)
Discussion started by: dhruuv369
7 Replies
CUT(1)							    BSD General Commands Manual 						    CUT(1)

NAME
cut -- cut out selected portions of each line of a file SYNOPSIS
cut -b list [-n] [file ...] cut -c list [file ...] cut -f list [-w | -d delim] [-s] [file ...] DESCRIPTION
The cut utility cuts out selected portions of each line (as specified by list) from each file and writes them to the standard output. If no file arguments are specified, or a file argument is a single dash ('-'), cut reads from the standard input. The items specified by list can be in terms of column position or in terms of fields delimited by a special character. Column and field numbering start from 1. The list option argument is a comma or whitespace separated set of increasing numbers and/or number ranges. Number ranges consist of a num- ber, a dash ('-'), and a second number and select the columns or fields from the first number to the second, inclusive. Numbers or number ranges may be preceded by a dash, which selects all columns or fields from 1 to the last number. Numbers or number ranges may be followed by a dash, which selects all columns or fields from the last number to the end of the line. Numbers and number ranges may be repeated, overlap- ping, and in any order. It is not an error to select columns or fields not present in the input line. The options are as follows: -b list The list specifies byte positions. -c list The list specifies character positions. -d delim Use delim as the field delimiter character instead of the tab character. -f list The list specifies fields, separated in the input by the field delimiter character (see the -d option). Output fields are separated by a single occurrence of the field delimiter character. -n Do not split multi-byte characters. Characters will only be output if at least one byte is selected, and, after a prefix of zero or more unselected bytes, the rest of the bytes that form the character are selected. -s Suppress lines with no field delimiter characters. Unless specified, lines with no delimiters are passed through unmodified. -w Use whitespace (spaces and tabs) as the delimiter. Consecutive spaces and tabs count as one single field separator. ENVIRONMENT
The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of cut as described in environ(7). EXIT STATUS
The cut utility exits 0 on success, and >0 if an error occurs. EXAMPLES
Extract users' login names and shells from the system passwd(5) file as ``name:shell'' pairs: cut -d : -f 1,7 /etc/passwd Show the names and login times of the currently logged in users: who | cut -c 1-16,26-38 SEE ALSO
colrm(1), paste(1) STANDARDS
The cut utility conforms to IEEE Std 1003.2-1992 (``POSIX.2''). HISTORY
A cut command appeared in AT&T System III UNIX. BSD
August 8, 2012 BSD
All times are GMT -4. The time now is 03:40 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy