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https://unix.stackexchange.com/questions/668902/how-to-check-if-uptime-is-greater-than-72h#:~:text=You%20can%20do%20all%20this%20in%20bash%20by,least%2072h%22%3B%20else%20echo%20%22Nothing%20to%20do%22%3B%20fi
https://stackoverflow.com/questions/28353409/bash-format-uptime-to-show-days-hours-minutes
$ uptime 12:49:10 up 25 days, 21:30, 28 users, load average: 0.50, 0.66, 0.52 To convert that to your format: $ uptime | awk -F'( |,|:)+' '{print $6,$7",",$8,"hours,",$9,"minutes."}' 25 days, 21 hours, 34 minutes. How it works-F'( |,|:)+' awk divides its input up into fields.
https://www.linuxquestions.org/questions/linux-general-1/extracting-hours-from-uptime-in-a-bash-script-705160/
Code: #!/bin/sh # Test Script to see if uptime is less than $HOURS hour (s) UPT=$uptime | sed -nr 's/.*\s+ ( [ [:digit:]] {1,2}): [ [:digit:]] {2},.*/\1/p' HOURS=2 if [$UPT -lt $HOURS] then echo "uptime is less then $HOURS hours (s)" exit else echo "uptime is greater than $HOURS hour (s)" fi. Output: Code:
https://unix.stackexchange.com/questions/668902/how-to-check-if-uptime-is-greater-than-72h
You can do all this in bash by converting dates into timestamps and do some calculations. You can use uptime -s so no need for awk or anything else #!/usr/bin/env bash upt=$(date -d "$(uptime -s)" +%s) hours=$(date -d '72 hours ago' +%s) if (( upt < hours)); then echo "System up for at least 72h"; else echo "Nothing to do"; fi
https://stackoverflow.com/questions/20361982/get-current-time-in-hours-and-minutes
Then if you want only to show current time in hours and minutes you can use this command : date | cut -d " " -f5 | cut -d ":" -f1-2 Then the output : 22:29
https://unix.stackexchange.com/questions/52313/how-to-get-execution-time-of-a-script-effectively
Further to @rubo77 comment, if your script takes several hours use hours=$((runtime / 3600)); minutes=$(( (runtime % 3600) / 60 )); seconds=$(( (runtime % 3600) % 60 )); echo "Runtime: $hours:$minutes:$seconds (hh:mm:ss)" –
https://www.geeksforgeeks.org/linux-uptime-command-with-examples/
Just to make sure you get the uptime in human-readable format, you can use option “p” [mistersubha@server-1 ~]$uptime -p up 29 weeks, 4 days, 11 hours, 1 minute Option “s” is used to get the starting time/specified time when the system started has been running. [mistersubha@server-1 ~]$uptime -s 2017-11-10 20:14:15
https://askubuntu.com/questions/77352/need-help-with-bash-checking-if-computer-uptime-is-greater-than-5-minutes
#!/bin/bash # # upt - show just the system uptime, days, hours, and minutes let upSeconds="$(cat /proc/uptime) && echo ${temp%%.*})" let secs=$((${upSeconds}%60)) let mins=$((${upSeconds}/60%60)) let hours=$((${upSeconds}/3600%24)) let days=$((${upSeconds}/86400)) if [ "${days}" -ne "0" ] then echo -n "${days}d" fi echo -n "${hours}h${mins}m"
https://www.linuxquestions.org/questions/linux-software-2/%27uptime%27-bash-script-40761/
#!/bin/bash # # upt - show just the system uptime, days, hours, and minutes let upSeconds="$(cat /proc/uptime) && echo ${temp%%.*})" let secs=$((${upSeconds}%60)) let mins=$((${upSeconds}/60%60)) let hours=$((${upSeconds}/3600%24)) let days=$((${upSeconds}/86400)) if [ "${days}" -ne "0" ] then echo -n "${days}d" fi echo -n …
https://www.tecmint.com/linux-uptime-command-examples/
uptime uses a simple syntax: # uptime [option] Using Uptime. You can run the uptime command without any options like so: # uptime It will display an output similar to: 09:10:18 up 106 days, 32 min, 2 users, load average: 0.22, 0.41, 0.32
https://www.unix.com/shell-programming-and-scripting/157938-extract-uptime-output-uptime-command.html
Note that the format increases the number of comma-separated fields and also changes if the uptime is an exact number of hours. Code: 12:55pm up 105 days, 21 hrs, 2 users, load average: 0.26, 0.26, 0.26 1:41pm up 105 days, 21:46, 2 users, load average: 0.28, 0.28, 0.27. It can be done by converting commas to newlines and ignoring everything from the line containing "users".
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