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Full Discussion: File manipulation place 0 before the number using sed
Top Forums UNIX for Beginners Questions & Answers File manipulation place 0 before the number using sed Post 303039594 by akopocpoypoy on Thursday 10th of October 2019 03:15:08 AM
Old 10-10-2019
File manipulation place 0 before the number using sed
I'm new with sed, and i am really confused with slashes, backslashes, parentheses, I've tried reading some beginner's guide, but still trouble fixing this problem, do you have any tips where or what to read to learn more about sed? can you also help me with my problem?

Note: I was tasked to use sed on this.

Sample file:

Code:
upctm,pmdw_bip,pmdw_bip_mnt_35-FOLDistAutoRpt,Oct 7 2019 4:45 AM,Oct 7 2019 4:45 AM,1,1,Oct 6 2019 12:00 AM,Ended OK,3ppnc
upctm,pmdw_ddm,pmdw_ddm_dum_01-StartProjDCSDemand,Oct 17 2019 4:02 AM,Oct 17 2019 4:02 AM,3,1,Oct 16 2019 12:00 AM,Ended OK,3pqgq

I need to add 0 if the number in day is 1 only (ex. Oct 7 2019 to Oct 07 2019).

I've tried to sed, but the Oct 17 was changed to Oct 017
Code:
sed 's/Oct /Oct 0/g' sample_file.txt

Output:
upctm,pmdw_bip,pmdw_bip_mnt_35-FOLDistAutoRpt,Oct 07 2019 4:45 AM,Oct 07 2019 4:45 AM,1,1,Oct 06 2019 12:00 AM,Ended OK,3ppnc
upctm,pmdw_ddm,pmdw_ddm_dum_01-StartProjDCSDemand,Oct 017 2019 4:02 AM,Oct 017 2019 4:02 AM,3,1,Oct 016 2019 12:00 AM,Ended OK,3pqgq

Thank you in advance
Last edited by RavinderSingh13; 10-10-2019 at 05:27 AM..
 

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LEARN ABOUT DEBIAN

fixnt

fixnt(1)							      Debian								  fixnt(1)

NAME

       fixnt - Filter for the Windows NT postscript printer driver.

SYNOPSIS

       fixnt < BADFILE.ps > GOODFILE.ps

DESCRIPTION

       The  Windows  NT  postscript  driver has a tendency to make broken postscript files, that are incompatible with psutils.  fixnt is a filter
       that fixes these problems, allowing the use of psnup(1).

       The filter takes the broken postscript file on stdin, and outputs a fixed postscript file on stdout.  It has no other form  for	invocation
       and takes no options on the command-line.

OPTIONS

       fixnt  takes no options.

BUGS

       fixnt does not check for NTPSOct94.  For a workaround, use a sed(1) command to replace 'NTPSOct94' with 'NTPSOct95', like so:
	      sed 's/NTPSOct94/NTPSOct95/g'
       This is particularly important for Windows NT 3.5 users.

AUTHOR

       fixnt   was   written   by   Holger   Bauer   <Holger.Bauer@topmail.de>,  Michael  Rath	<rath@itsm.uni-stuttgart.de>,  and  Akim  Demaille
       <demaille@inf.enst.fr>.

REPORTING BUGS

       Report bugs to the Authors, but avoid sending large postscript files.

       Patches are always welcome; send to <bauer@itsm.uni-stuttgart.de>.

SEE ALSO

       psnup(1), sed(1)

a2ps								   February 2003							  fixnt(1)
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