Sponsored Content
Top Forums UNIX for Beginners Questions & Answers Replace one column from fixed width file with another column from another file Post 303044953 by nezabudka on Monday 9th of March 2020 05:00:57 PM
Old 03-09-2020
Hi, @pchang
NF>12 We select for modification only those lines where there are more than 12 fields(columns).
In other words, you can NF>3 to cut off the first and last lines and avoid the error output.
Because the first and last line contains only 2 fields, which means if we subtract from 2-4 (FN-4)
we get an error - the fields with the number $(-2) cannot exist.
We select only 5 from the end of the fields for substitution (NF-4), which means
that the appearance of the 'DR' in other fields will remain untouched.
If a different letter prefix is expected in the fourth field from the end
then the program must be rewritten

Last edited by nezabudka; 03-09-2020 at 06:17 PM..
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Comparing column of variable length anf fixed width file

Hi, I have two input files. File1: ID Name Place 1-234~name1~Newyork 1-34~name2~Boston 1-2345~name3~Hungary File1 is a variable length file where each column is seperated by delimitter "~". File2: ID Country 1-34<<11 SPACES>>USA<<7 spaces>> 1-234<<10 SPACES>>UK<<8... (5 Replies)
Discussion started by: manneni prakash
5 Replies

2. Shell Programming and Scripting

edit entire column from a fixed-width file using awk or sed

Col1 Col2 Col3 Col4 12 Completed 08 0830 12 In Progress 09 0829 11 For F U 07 0828 Considering the file above, how could i replace the third column the most efficient way? The actual file size is almost 1G. I am... (10 Replies)
Discussion started by: tamahomekarasu
10 Replies

3. Shell Programming and Scripting

Changing one column of delimited file column to fixed width column

Hi, Iam new to unix. I have one input file . Input file : ID1~Name1~Place1 ID2~Name2~Place2 ID3~Name3~Place3 I need output such that only first column should change to fixed width column of 15 characters of length. Output File: ID1<<12 spaces>>Name1~Place1 ID2<<12... (5 Replies)
Discussion started by: manneni prakash
5 Replies

4. Shell Programming and Scripting

row to column and position data in to fixed column width

Dear friends, Below is my program and current output. I wish to have 3 or 4 column output in order to accomodate in single page. i do have subsequent command to process after user enter the number. Program COUNT=1 for MYDIR in `ls /` do VOBS=${MYDIR} echo "${COUNT}. ${MYDIR}" ... (4 Replies)
Discussion started by: baluchen
4 Replies

5. UNIX for Dummies Questions & Answers

Remove duplicates based on a column in fixed width file

Hi, How to output the duplicate record to another file. We say the record is duplicate based on a column whose position is from 2 and its length is 11 characters. The file is a fixed width file. ex of Record: DTYU12333567opert tjhi kkklTRG9012 The data in bold is the key on which... (1 Reply)
Discussion started by: Qwerty123
1 Replies

6. Shell Programming and Scripting

How to split a fixed width text file into several ones based on a column value?

Hi, I have a fixed width text file without any header row. One of the columns contains a date in YYYYMMDD format. If the original file contains 3 dates, I want my shell script to split the file into 3 small files with data for each date. I am a newbie and need help doing this. (14 Replies)
Discussion started by: bhanja_trinanja
14 Replies

7. Shell Programming and Scripting

To replace the value of the column in a fixed width file

I have a fixed with file with header & trailer length having the same length of the detail record file. The details record length of this file is 24, for Header and Trailer the records will be padded with spaces to match the record length of the file Currently I am adding 3 spaces in header... (14 Replies)
Discussion started by: ginrkf
14 Replies

8. Shell Programming and Scripting

Print column details from fixed width file using awk command

hi, i have a fixed width file with multiple columns and need to print data using awk command. i use: awk -F "|" '($5 == BH) {print $1,$2,$3}' <non_AIM target>.txt for a delimiter file. but now i have a fixed width file like below: 7518 8269511BH 20141224951050N8262 11148 8269511BH... (5 Replies)
Discussion started by: kcdg859
5 Replies

9. Shell Programming and Scripting

UNIX command -Filter rows in fixed width file based on column values

Hi All, I am trying to select the rows in a fixed width file based on values in the columns. I want to select only the rows if column position 3-4 has the value AB I am using cut command to get the column values. Is it possible to check if cut -c3-4 = AB is true then select only that... (2 Replies)
Discussion started by: ashok.k
2 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 [-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 numbering starts from 1. The list option argument is a comma or whitespace separated set of numbers and/or number ranges. Number ranges consist of a number, a dash ('-'), and a second number and select the fields or columns from the first number to the second, inclusive. Numbers or number ranges may be preceded by a dash, which selects all fields or columns from 1 to the last number. Numbers or number ranges may be followed by a dash, which selects all fields or columns from the last number to the end of the line. Numbers and number ranges may be repeated, overlapping, and in any order. If a field or column is specified multiple times, it will appear only once in the output. It is not an error to select fields or columns 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. 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
December 21, 2006 BSD
All times are GMT -4. The time now is 02:13 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy