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How to convert sysuptime to well format date?
If you do not need the seconds, you can simply run the uptime command. Its output can then be simply transformed to DD:HH:MM. No, because it’s not really a hard problem. Divide the number of seconds by 86400 using integer division to get the number of days.
How to convert a string to a date in Unix?
Unix date format validation script 1 invalid date error for %m%d%Y format 2 Convert a date to UNIX timestamp on OpenBSD 0 Convert String to time format and append with current date – Shell/ksh 2 Convert linux uptime to well format date 0 Get the date]
How to convert Unix sysuptime to human readable date?
Taking the number of seconds since the epoch and turning that into a human readable date is a hard problem, and so there are standard ways to do that, e.g. date -r SECONDS from the shell. But that’s a different problem. Adapting the relevant part of this answer. As long as your uptime is less than a year, you can use the following command:
How to calculate the number of hours in Linux?
Take the remainder and divide that by 3600 to get the number of hours. Divide the remainder of that by 60 to get the number of minutes, and you’re left with the number of seconds. All this is doable from the shell using the expr command if your shell is ancient enough to not support arithmetic natively
How to format date and time in Linux?
You need to use the standard date command to format date or time in Linux or Unix shell scripts. You can use the same command with the shell script. This page shows how to format date in Linux or Unix-based system.
How to format date for display or use in a shell script?
FORMAT controls the output. It can be the combination of any one of the following: The following works on Apple OS X, FreeBSD and BSD version of the date command: is replaced by national representation of the full weekday name. is replaced by national representation of the abbreviated weekday name.