Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Format a date on additional column awk
Top Forums UNIX for Beginners Questions & Answers Format a date on additional column awk Post 303031801 by Don Cragun on Wednesday 6th of March 2019 03:18:44 AM
Old 03-06-2019
Expanding a little bit on what RudiC said ....

It looks like the file you are processing is partially in DOS text file format with some <carriage-return> <newline> character pair line separators instead of UNIX text file format <newline> single character line terminators. But, as RudiC said, we would expect that to happen on every line; not just the first and last.

Please confirm by running the command:
Code:
od -bc filename

where filename is the name of the input file you processed to get the output you showed us in post #7 in this thread.

To get rid of the <carriage-return>s in a file you can use:
Code:
tr -d '\r' < old_file > new_file

where old_file is the name of a file containing <carriage-return>s and new_file is the name of thee file that you want to contain the contents of old_file without the <carriage-return>s. If this is a common problem with input files you'll be processing, you can change the script I suggested before to be:
Code:
#!/bin/ksh
tr -d '\r' < HB.txt | while IFS=, read -r date rest
do	printf '%s,%s,%(%a)T\n' "$date" "$rest" "$date"
done

or:
Code:
#!/bin/ksh
while IFS=, read -r date rest
do	printf '%s,%s,%(%a)T\n' "$date" "$rest" "$date"
done < HB.txt | tr -d '\r'

This User Gave Thanks to Don Cragun For This Post:
benchin_
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

AWK CSV to TXT format, TXT file not in a correct column format

HI guys, I have created a script to read 1 column in a csv file and then place it in text file. However, when i checked out the text file, it is not in a column format... Example: CSV file contains name,age aa,11 bb,22 cc,33 After using awk to get first column TXT file... (1 Reply)
Discussion started by: mdap
1 Replies

2. UNIX for Dummies Questions & Answers

Format Date in awk

I have an assignment in a Linux class I am taking. It has multiple scripts. Basicly when it runs it asks the user name and shows information about the user from the /etc/passwd and /etc/shadow files. The one I need help with is the one that reads the /etc/shadow file. I need to format the date into... (1 Reply)
Discussion started by: kazulk
1 Replies

3. Shell Programming and Scripting

Convert the date format from mdy to ymd in column of file

The date format in the delimited file for one column '6/27/2011 12:00:00 AM' Is it possible o change it to '2011-06-27 12:00:00 AM' for all the records.. Thanks in advance..... (8 Replies)
Discussion started by: infernalhell
8 Replies

4. Shell Programming and Scripting

awk compare column with date format

I have this code to compare columns 1 and 10 between file1 and file 2 and give me all records that match column 1 but dont match column 10 However column 10 is date format mm/dd/yy and awk cant read it and compare ...i tried awk < file1 -F~ '{print $10}' and it gave blank screen Is... (1 Reply)
Discussion started by: sigh2010
1 Replies

5. Shell Programming and Scripting

awk - change date format

I have below date format in a CSV file. (dd/mm/yyyy) Ex Input: 9/8/2013 Need to convert it into below format (yyyymmdd ) and redirect to new file. Ex Output: 20130809 How do I use awk here to change the format and if leading 0 (zero) is not then add it. Please help. Thanks. (8 Replies)
Discussion started by: vegasluxor
8 Replies

6. Shell Programming and Scripting

awk convert date format

Could you tell me how to convert the following dates? If I have m/d/yyyy, I want to have 0m/0d/yyyy. I want my dates to always be 8 digits. In other words, I want a 0 inserted whenever the month or day is a single digit. My issue is first I need to use FS="," to get field $4 for the... (7 Replies)
Discussion started by: wbrunc
7 Replies

7. Shell Programming and Scripting

Convert date column as yyyy/mm/dd format

Hi All, I have file like “April 10, 2013”,”raj” “April 29, 2013”,”raj1” Output : “2013/04/10”,”raj” “2013/04/29”,”raj1” Please help me how to do... (9 Replies)
Discussion started by: bmk
9 Replies

8. Shell Programming and Scripting

How to change the format of the date column in a flat file?

Hi, i have a flat file namely temp.txt with this data below ID|name|contact_date 101|Kay|2013-12-26 102|let|2013-12-26 I need to modify the date data in the flat file into MM/DD/YYYY HH24:MI:SS format let me know the code for this. Thank you! (5 Replies)
Discussion started by: srikanth_sagi
5 Replies

9. Shell Programming and Scripting

How to awk or grep the last column in file when date on column contains spaces?

Hi have a large spreadsheet which has 4 columns APM00111803814 server_2 96085 Corp IT Desktop and Apps APM00111803814 server_2 96085 Corp IT Desktop and Apps APM00111803814 server_2 96034 Storage Mgmt Team APM00111803814 server_2 96152 GWP... (6 Replies)
Discussion started by: kieranfoley
6 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 10:48 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy