How can I improve the memory output from a Bash script?

Question

I have a script that prints RAM total memory in gigabytes.

Here is the script:

echo "scale=2; $(sudo awk '/MemTotal/ {print , $2}' /proc/meminfo ) / 1024^2" | bc

and the output of this script is: 11.61

I want to add a string so that output of this script will be something like:

Memory: 11.61GB

How can I do that ?

You shouldn't need sudo just to read from /proc/meminfo. — chepner
– chepner, Commented Feb 15, 2017 at 16:15

chepner · Accepted Answer · 2017-02-15 16:17:54Z

4

You don't need bc; awk can do math as well, so you can add the desired string to the output of awk.

awk '/MemTotal/ {printf "Memory: %.02fGB\n", $2/1024/1024}' /proc/meminfo

answered Feb 15, 2017 at 16:17

chepner

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