Sponsored Content
Top Forums Shell Programming and Scripting How to remove alphabets/special characters/space in the 5th field of a tab delimited file? Post 302900612 by rdrtx1 on Wednesday 7th of May 2014 07:25:41 PM
Old 05-07-2014
try:
Code:
awk -F"\t" 'NF>4{
  f=$5;
  sub("^\"", "", f);
  sub("\"$", "", f);
  f = (f ~ /^[0-9]*$/) ? f : "";
  $5="\"" f "\"";
  print;
}' infile

 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Converting Space delimited file to Tab delimited file

Hi all, I have a file with single white space delimited values, I want to convert them to a tab delimited file. I tried sed, tr ... but nothing is working. Thanks, Rajeevan D (16 Replies)
Discussion started by: jeevs81
16 Replies

2. Shell Programming and Scripting

insert a field into a tab delimited file

Hello, Can someone help me to do this with awk or sed? I have a file with multiple lines, each line has many fields separated with a tab. I would like to add one more field holding 'na' in between the first and second fields. old file looks like, 1, field1 field2 field3 ... 2, field1... (7 Replies)
Discussion started by: ssshen
7 Replies

3. UNIX for Dummies Questions & Answers

Insert Field into a tab-delimited file

Hello, I have about 100 files in a directory with fields which are tab delimited. I would like to append the file name as the first field and it has to be done as many times as the total lines in the file. For example, myFile1.txt has the following data: 1 x y z 2 a b ... (5 Replies)
Discussion started by: Gussifinknottle
5 Replies

4. Shell Programming and Scripting

Merging files into a single tab delimited file with a space separating

I have a folder that contains say 50 files in a sequential order: cdf_1.txt cdf_2.txt cdf_3.txt cdf_3.txt . . . cdf_50.txt. I need to merge these files in the same order into a single tab delimited file. I used the following shell script: for x in {1..50}; do cat cdf_${x}.txt >>... (3 Replies)
Discussion started by: Lucky Ali
3 Replies

5. Shell Programming and Scripting

Remove the special characters from field

Hi, In source data few of columns are having special charates(like *) due to this i am not able to display the data into flat file.it's displaying the some of junk data into the flat file. source dataExample: Address1="XDERFTG * HYJUYTG" how to remove the special charates in a string (2 Replies)
Discussion started by: koti_rama
2 Replies

6. UNIX for Dummies Questions & Answers

Changing only the first space to a tab in a space delimited text file

Hi, I have a space delimited text file but I only want to change the first space to a tab and keep the rest of the spaces intact. How do I go about doing that? Thanks! (3 Replies)
Discussion started by: evelibertine
3 Replies

7. Shell Programming and Scripting

How to make tab delimited file to space delimited?

Hi How to make tab delimited file to space delimited? in put file: ABC kgy jkh ghj ash kjl o/p file: ABC kgy jkh ghj ash kjl Use code tags, thanks. (1 Reply)
Discussion started by: jagdishrout
1 Replies

8. Shell Programming and Scripting

How to convert space&tab delimited file to CSV?

Hello, I have a text file with space and tab (mixed) delimited file and need to convert into CSV. # cat test.txt /dev/rmt/tsmmt32 HP Ultrium 6-SCSI J3LZ 50:03:08:c0:02:72:c0:b5 F00272C0B5 0/0/6/1/1.145.17.255.0.0.0 /dev/rmt/c102t0d0BEST /dev/rmt/tsmmt37 ... (6 Replies)
Discussion started by: prvnrk
6 Replies

9. Shell Programming and Scripting

Remove blank columns from a tab delimited text file

Hello, I have some tab delimited files that may contain blank columns. I would like to delete the blank columns if they exist. There is no clear pattern for when a blank occurs. I was thinking of using sed to replace instances of double tab with blank, sed 's/\t\t//g' All of the examples... (2 Replies)
Discussion started by: LMHmedchem
2 Replies

10. Shell Programming and Scripting

Output file with <Tab> or <Space> Delimited

Input file: xyz,pqrs.lmno,NA,NA,NA,NA,NA,NA,NA abcd,pqrs.xyz,NA,NA,NA,NA,NA,NA,NA Expected Output: xyz pqrs.lmno NA NA NA NA NA NA NA abcd pqrs.xyz NA NA NA NA NA NA NA Command Tried so far: awk -F"," 'BEGIN{OFS=" ";} {print}' $File_Path/File_Name.csv Issue:... (5 Replies)
Discussion started by: TechGyaann
5 Replies
CUT(1)							    BSD General Commands Manual 						    CUT(1)

NAME
cut -- select 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 selects portions of each line (as specified by list) from each file and writes them to the standard output. If no file argu- ments are specified, or a file argument is a single dash ('-'), cut reads from 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 increasing numbers and/or number ranges. Number ranges consist of a num- ber, 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 first 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, over- lapping, and in any order. 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 the first character of delim as the field delimiter character instead of the tab character. -f list The list specifies fields, delimited in the input by a single tab character. Output fields are separated by a single tab character. -n Do not split multi-byte characters. -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 if the -n option is specified. Their effect is described in environ(7). 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 DIAGNOSTICS
The cut utility exits 0 on success, and >0 if an error occurs. SEE ALSO
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. BUGS
The -c option is a synonym for the -b option, which causes incorrect behaviour in locales that support multibyte characters. When operating on fields (-f option is specified), cut does not recognise multibyte characters, and the delim character is recognised in the middle of multibyte sequences. BSD
June 6, 1993 BSD
All times are GMT -4. The time now is 12:03 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy