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Date Manipulation

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# 1  
Old 03-02-2010
Date Manipulation

I have a file with a field containing the following:

"7/3/2009 7:07:12 PM","xxxx"

I need to be able to split this field up into two into a different format with the time being converted into 24 hour:

so that i can get the following:

# 2  
Old 03-02-2010
date +%Y%m%d This format will output like current date in the following format

date %R:%S will give 24_hour:minute:second
Example 15:09:52
# 3  
Old 03-02-2010
Thanks for the reply,

I have over 1000 different date and time formats, what you have said above if i did that in my script it would work of system date, how can i get it to read the actual date and time specified in the file
# 4  
Old 03-02-2010
Is your file format is fixed character length ???
# 5  
Old 03-02-2010
Simplified to understand...can be optimized.

$str='"7/3/2009 09:07:12 PM","xxxx"' ;
$str =~ s/\"//g ;
@arr=split(/,/, $str);
@datestr=split(/ /,$arr[0]);
@timearr=split(/:/, $datestr[1]);

if ($merid =~ m/PM/ )
	if ( $merid ge 10 ) {
           $hour = 12 + $timearr[0];
        else {
           $hour= 24 - $timearr[0];

if ($daystr[0] =~ m/\d\d/) {
if ($daystr[1] =~ m/\d\d/) {

$daystr='"'.$year.$day.$month.'", ';
$timestr='"'.$hour.":".$timearr[1].":".$timearr[2].'", ';


Devaraj Takhellambam
# 6  
Old 03-02-2010
You can use the following script to read the data from file and printing it in the required format.

arr=`sed 's/"//g;s/,/ /g;' file`

date=`echo ${arr[$i]} | cut -d ' ' -f 1`

day=`echo $date | cut -d '/' -f 1`

mon=`echo $date | cut -d '/' -f 2`

year=`echo $date | cut -d '/' -f 3 `

time=`echo ${arr[$i]} | cut -d ' ' -f 2`

format=`echo ${arr[$i]} | cut -d ' ' -f 3`

data=`echo ${arr[$i]} | cut -d ' ' -f 4-`

hour=`echo $time | cut -d ':' -f 1 `

Minsec=`echo $time | cut -d ':' -f 2-`

if [[ $format == 'PM' ]]
let hour+=12
mon=`printf "%02d" $mon`
day=`printf "%02d" $day`
echo \"$year$mon$day\",\"$hour:$Minsec\",\"$data\"

# 7  
Old 03-02-2010
thanks for all the replies,

vivekraj, i get a syntax error in your code

syntax error at line 12 : `((' unexpected

I'm using KSH (solaris)

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