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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_
 

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LEARN ABOUT DEBIAN

carp::datum::strip

Datum::Strip(3pm)					User Contributed Perl Documentation					 Datum::Strip(3pm)

NAME

       Carp::Datum::Strip - strips most Carp::Datum calls lexically

SYNOPSIS

	use Carp::Datum::Strip qw(datum_strip);

	datum_strip("-", "-");
	datum_strip($file, "$file.new", ".bak");

DESCRIPTION

       This module exports a single routine, datum_strip(), whose purpose is to remove calls to "Carp::Datum" routines lexically.

       Because stripping is done lexically, there are some restrictions about what is actually supported.  Unless the conventions documented in
       Carp::Datum are followed, stripping will be incorrect.

       The general guidelines are:

       o   Do not use here documents or generalized quotes (qq) within assertion expression or tags.  Write assertions using '' or "", as
	   appropriate.

       o   Assertions can be safely put on several lines, but must end with a semi-colon, outside any string.

       There are two calls that will never be stripped: VERIFY() and DTRACE().	The VERIFY() is meant to be preserved (or "DREQUIRE" would have
       been used).  "DTRACE", when called, will be remapped dynamically to some "Log::Agent" routine, depending on the trace level.  See
       Carp::Datum for details.

INTERFACE

       The interface of the datum_strip() routine is:

       "datum_strip" old_file, new_file, [ext]
	   The old_file specifies the old file path, the one to be stripped.  The stripped version will be written to new_file.

	   If the optional third argument ext is given (e.g. ".bak"), then old_file will be renamed with the supplied extension, and new_file will
	   be renamed old_file.  Renaming only occurs if stripping was successful (i.e. the new file was correctly written to disk).

	   The lowest nine "rwx" mode bits from old_file are preserved when creating new_file.

	   Both old_file and new_file can be set to "-", in which case STDIN and STDOUT are used, respectively, and no renaming can occur, nor any
	   mode bit propagation.

	   Returns true on success, "undef" on error.

AUTHORS

       Christophe Dehaudt and Raphael Manfredi are the original authors.

       Send bug reports, hints, tips, suggestions to Dave Hoover at <squirrel@cpan.org>.

SEE ALSO

       Carp::Datum(3).

perl v5.10.0							    2006-04-13							 Datum::Strip(3pm)
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