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Full Discussion: Unable to convert date into no. using date -d +%s syntax in ksh shell
Top Forums UNIX for Dummies Questions & Answers Unable to convert date into no. using date -d +%s syntax in ksh shell Post 302652423 by Jcpratap on Thursday 7th of June 2012 06:34:11 AM
Old 06-07-2012
Hi Methyl,
sorry for typo ,the code is for gzipping the files.
ls -lart gives same o/p as ls -lrt

absolutely corrct ,i am trying to gzip files older than today which are of a certain pattern.
I will be setting a cron for this which will run at 2300 hrs everyday.
My script comapres the month first with todays date,then the day.
this script will fail on 1st jan as jan is assigned a no. 1 which is less than 12(dec),
so all files for dec 31st will no get gzipped.

also Please find the full code for sun OS 5.8

Code:
 
datecalc()
{
if [ $1 = "Jan" ]
then
return 1;
elif  [ $1 = "Feb" ]
then
return 2;
elif  [ $1 = "Mar" ]
then
return 3;
elif  [ $1 = "Apr" ]
then
return 4;
elif [ $1 = "May" ]
then
return 5;
elif  [ $1 = "Jun" ]
then
return 6;
elif  [ $1 = "Jul" ]
then
return 7;
elif  [ $1 = "Aug" ]
then
return 8;
elif [ $1 = "Sep"
then
return 9;
elif  [ $1 = "Oct" ]
then
return 10;
elif  [ $1 = "Nov" ]
then
return 11;
elif  [ $1 = "Dec" ]
then
return 12;
fi
}
v1=`ls -lrt | awk '{print $6,$7,$8,$9}'| egrep -v "gz$" |  egrep "MDCR.*" | wc -l`
v2=`date | awk '{print $2}'`
v3=`date | awk '{print $3}'`
datecalc $v2
v4=$?
i=1
while [ $i -le $v1 ]
do
A[$i]=`ls -lrt | awk '{print $6,$7,$8,$9}'| egrep -v "gz$" |  egrep "MDCR.*" | awk '{print $1}' | head -$i | tail -1`
B[$i]=`ls -lrt | awk '{print $6,$7,$8,$9}'| egrep -v "gz$" |  egrep "MDCR.*" | awk '{print $2}' | head -$i | tail -1`
C[$i]=`ls -lrt | awk '{print $9}'| egrep -v "gz$" |  egrep "MDCR.*" | awk '{print $1}' | head -$i | tail -1`
x=${A[$i]}
datecalc $x
v5=$?
y=${B[$i]}
if [ $v5 -lt $v4 ]
then
gzip ${A[$i]}
elif [ $v5 = $v4 && $y -lt $v3 ]
then
gzip ${A[$i]}
fi
i=`expr $i + 1`
done

thanks
jcpratap
 

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LEARN ABOUT MOJAVE

dp

DP(8)                                                                [nmh-1.5]                                                               DP(8)

NAME

       dp - parse dates 822-style

SYNOPSIS

       /usr/lib/mh/dp [-form formatfile] [-format string] [-width columns] [-version] [-help] dates ...

DESCRIPTION

       Dp  is  a  program that parses dates according to the ARPA Internet standard.  It also understands many non-standard formats, such as those
       produced by TOPS-20 sites and some UNIX sites using ctime(3).  It is useful for seeing how nmh will interpret a date.

       The dp program treats each argument as a single date, and prints the date out in the official 822-format.  Hence, it  is  usually  best  to
       enclose each argument in quotes for the shell.

       To  override  the  output  format  used by dp, the -format string or -format file switches are used.  This permits individual fields of the
       address to be extracted with ease.  The string is simply a format string and the file is simply a format file.  See  mh-format(5)  for  the
       details.

       Here is the default format string used by dp:

            %<(nodate{text})error: %{text}%|%(putstr(pretty{text}))%>

       which  says  that  if an error was detected, print the error, a `:', and the date in error.  Otherwise, output the 822-proper format of the
       date.

FILES

       $HOME/.mh_profile          The user profile

PROFILE COMPONENTS

       None

SEE ALSO

       ap(8), Standard for the Format of ARPA Internet Text Messages (RFC-822)

DEFAULTS

       `-format' default as described above
       `-width' default to the width of the terminal

CONTEXT

       None

BUGS

       The argument to the -format switch must be interpreted as a single token by the shell that invokes dp.  Therefore, one must  usually  place
       the argument to this switch inside quotes.

MH.6.8                                                             11 June 2012                                                              DP(8)
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