Using System Time in Shell Script
By: Vivek G in Linux Tutorials on 2011-01-29
This shell script shows to print any one of the following message in infobox using dialog utility, if installed in your system, If dialog utility is not installed then use echo statement to print message :Good Morning Good Afternoon Good Evening , according to system time.
temph=`date | cut -c12-13` dat=`date +"%A %d in %B of %Y (%r)"` if [ $temph -lt 12 ] then mess="Good Morning $LOGNAME, Have nice day!" fi if [ $temph -gt 12 -a $temph -le 16 ] then mess="Good Afternoon $LOGNAME" fi if [ $temph -gt 16 -a $temph -le 18 ] then mess="Good Evening $LOGNAME" fi if which dialog > /dev/null then dialog --backtitle "Linux Shell Script Tutorial"\ --title "(-: Welcome to Linux :-)"\ --infobox "\n$mess\nThis is $dat" 6 60 echo -n " Press a key to continue. . . " read clear else echo -e "$mess\nThis is $dat" fi
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