can anyone one help me....to make date and time format...to following format for my file

DATE                           TIME
DD- MON- YEAR         24 Hours

DD-MON-YEAR
MON-DAY-YEAR
YEAR-MON-DAY
DD/MON/YEAR
MON/DAY/YEAR
YEAR/MON/DAY

Attached Files

problem.txt (1.1 KB, 35 views)

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Thank god for the date command. This is how I would attack this...

date -d "03/16/1970" '+%d-%b-%Y %H:%M:%S'
16-Mar-1970 00:00:00

date -d "March 16 1970" '+%d-%b-%Y %H:%M:%S'
16-Mar-1970 00:00:00

date -d "16-Mar-70" '+%d-%b-%Y %H:%M:%S'
16-Mar-1970 00:00:00

date -d "03-16-1970" '+%d-%b-%Y %H:%M:%S'
date: invalid date `03-16-1970'

my_var=`echo 03-16-1970 | sed 's/-/\//g'
echo $my_var
03/16/1970
date -d $my_var '+%d-%b-%Y %H:%M:%S'
16-Mar-1970 00:00:00

Originally Posted by nex_asp can anyone one help me....to make date and time format...to following format for my file Code: DATE TIME DD- MON- YEAR 24 Hours I have a need of format like this 12-Jan-2012 in one column, then time in 24 Hours in another column....please help...me... currently we are upgrading our database....kindly help to make standard format... our database containing format like this Code: DD-MON-YEAR MON-DAY-YEAR YEAR-MON-DAY DD/MON/YEAR MON/DAY/YEAR YEAR/MON/DAY some files containing month name, some number... and time format both 12 and 24 hours are mixed script has to read current format of date and time and then write to new file with standard format Awaiting for help... those who know please do favour for me...

Are these ALL of the possible timestamp formats that can occur in the first column of your file?:

Code:

-- 12 hour
DD-MON-YEAR   25-Jul-1979 03:00:00 AM
MON-DAY-YEAR  Feb-08-1988 12:05:00 PM
YEAR-MON-DAY  1988-Feb-08 12:05:00 PM
DD/MON/YEAR   25/1/1979 06:00:00 AM
MON/DAY/YEAR  7/19/1979 06:00:00 PM
YEAR/MON/DAY  1979/7/19 06:00:00 PM

-- 24 hour
DD-MON-YEAR   25-Jul-1979 03:00
MON-DAY-YEAR  Feb-08-1988 12:05
YEAR-MON-DAY  1988-Feb-08 12:05
DD/MON/YEAR   25/1/1979 06:00
MON/DAY/YEAR  7/19/1979 18:00
YEAR/MON/DAY  1979/7/19 18:00

Freeform dates are a disaster in data processing. This problem is a good example.

given this sample:

  
  25/1/1979 06:00:00 AM
  7/19/1979 06:00:00 PM

4/7/1979 06:00:00 PM

1. do not let that happen again in the future, constrain date entry to a known format.
2. find somebody in your company who knows a lot about the data, let them decide.
Or guess.