I'm trying to get my AMD GPU temperature from lm-sensors within bash. So I piped awk to get the correct line. But now I need a regular expression to get the data from it.
My current code is:
sensors | awk '/edge/ {print$2}'
This outputs +53.0°C
Now I only need the 53.0. How can I do this in bash?
Without any regex, you can do this in awk
:
# prints 2nd field from input
awk '{print $2}' <<< 'edge +53.0°C foo bar'
+53.0°C
# converts 2nd field to numeric and prints it
awk '{print $2+0}' <<< 'edge +53.0°C foo bar'
53
# converts 2nd field to float with one decimal point and prints it
awk '{printf "%.1f\n", $2+0}' <<< 'edge +53.0°C foo bar'
53.0
So for your case, you can use:
sensors | awk '/edge/ {printf "%.1f\n", $2+0}'
Could you please try following.
awk 'match($2,/[0-9]+(\.[0-9]+)?/){print substr($2,RSTART,RLENGTH)}' Input_file
OR
sensors | awk 'match($2,/[0-9]+(\.[0-9]+)?/){print substr($2,RSTART,RLENGTH)}'
Explanation: Adding detailed explanation for above.
awk ' ##Starting awk porgram from here.
match($2,/[0-9]+(\.[0-9]+)?/){ ##using match function to match digits DOT digits(optional) in 2nd field.
print substr($2,RSTART,RLENGTH) ##printing sub string from 2nd field whose starting point is RSTART till RLENGTH.
}
' Input_file ##Mentioning Input_file name here.
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