Memory and SWAP usage on motd

draddy · 25. Februar 2020

hi,

can someone help me?
i have a motd using /etc/update-motd.d/ scripts

shows me some system information when connect via ssh. works great on my old omv3 - some fine tunings and works on omv5 as well - but - RAM and SWAP usage allways show 0

output:

Code

System Load:   3.60                    IP Address:     192.168.177.9
 CPU Temp:      43°C                    System Temp:    42°C
 Memory usage:  0.0% of 7627M           System uptime:  1 min
 Usage on /:    39% of 28G              SSD Temp:       37°C
 Usage nas1     27%  of 2.7T            HDD Temp:       33°C
 Usage nas2     79%  of 2.7T            HDD Temp:       35 C
 Swap usage     0.0% of 7848M

unless omv dashboard also didn't show the right Memory usage i didn't think about it, like "if they fix that, my will also work" now dashboard is fixed - but my script still don't show the right usage.

here is the code for memory and swap in the motd script.

Code

memory_usage=`free -m | awk '/Mem:/ { total=$2 } /buffers\/cache/ { used=$3 } END { printf("%3.1f%%", used/total*100)}'`
memory_total=$(free -m |  awk '/Mem/ {print $(2)}')
swap_usage=`free -m | awk '/Swap/ { printf("%3.1f%%", "exit !$2;$3/$2*100") }'`
swap_total=$(free -m |  awk '/Swap/ {print $(2)}')

what to change to get it working again?

thx

draddy · 27. Februar 2020

got it

Code

memory_usage=`free | awk '/Mem/{printf("%.2f%"), $3/$2*100}'`
memory_total=$(free -m |  awk '/Mem/ {print $(2)}')
swap_usage=`free | awk '/Swap/{printf("%.2f%"), $3/$2*100}'`
swap_total=$(free -m |  awk '/Swap/ {print $(2)}')

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