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Top Forums Shell Programming and Scripting Finding latest file in dir but getting syntax errors Post 302997599 by jim mcnamara on Wednesday 17th of May 2017 06:57:30 AM
Old 05-17-2017
consider a shorter bit of arithmetic:
Code:
# the the age of the file using epoch seconds
fileage=$(( $(date +%s) - $(date -r min.h.bak +%s) ))
# age expressed as hours:
echo "hours = $(( $fileage / 3600 ))"
# age in days:
echo "days = $(( $fileage / 86400 ))"

You errors have a space between the variable name and equal symbol in an assign statement
Code:
var ="bad"
var= "bad"
var = "bad"
# no spaces either side of the equals symbol.
var="correct"

You have a logic problem using %H for hours - file going over midnight i.e., yesterday at 2300 and today at 0106 will give you a negative number

Last edited by jim mcnamara; 05-17-2017 at 08:02 AM..
This User Gave Thanks to jim mcnamara For This Post:
 

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strclean(1M)						  System Administration Commands					      strclean(1M)

NAME
strclean - STREAMS error logger cleanup program SYNOPSIS
strclean [-a age] [-d logdir] DESCRIPTION
strclean is used to clean up the STREAMS error logger directory on a regular basis (for example, by using cron. By default, all files with names matching error.* in /var/adm/streams that have not been modified in the last three days are removed. OPTIONS
The following options are supported: -aage The maximum age in days for a log file can be changed using the -a option. -dlogdir A directory other than /var/adm/streams can be specified using the -d option. EXAMPLES
Example 1: A sample of using the strclean command. This example has the same result as running strclean with no arguments: example% strclean -d /var/adm/streams -a 3 FILES
/var/adm/streams/error.* ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
cron(1M), strerr(1M), attributes(5) STREAMS Programming Guide NOTES
strclean is typically run from cron on a daily or weekly basis. SunOS 5.10 14 Sep 1992 strclean(1M)
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