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awkcolorsecho
Matematleta
Matematleta

Reputation: 113

Output of awk in color

I am trying to set up polybar on my newly-installed Arch system. I know very little bash scripting. I am just getting started. If this is not an appropriate question for this forum, I will gladly delete it. I want to get the following awk output in color:

sensors | grep "Package id 0:" | tr -d '+' | awk '{print $4}'"

I know how to do this with echo, so I tried to pass the output so that with the echo command, it would be rendered in color:

sensors | grep "Package id 0:" | tr -d '+' | awk '{print $4}' | echo -e "\e[1;32m ???? \033[0m"

where I want to put the appropriate information where the ??? are.

The awk output is just a temperature, something like this: 50.0°C.

edit: It turns out that there is a very easy way to pass colors to outputs of bash scripts (even python scripts too) in polybar. But I am still stumped as to why the solutions suggested here in the answers work in the terminal but not in the polybar modules. I have several custom modules that use scripts with no problems.

Upvotes: 0

Views: 237

Answers (2)

sseLtaH
sseLtaH

Reputation: 11247

Using awk

$ sensors | awk '/Package id 0:/{gsub(/+/,""); print "\033[32m"$4"\033[0m"}'

If that does not work, you can try this approach;

$ sensors | awk -v color="$(tput setaf 2)" -v end="$(tput sgr0)" '/Package id 0:/{gsub(/+/,""); print color $4 end}'

Upvotes: 3

glenn jackman
glenn jackman

Reputation: 247202

This is where you want to capture the output of awk. Since awk can do what grep and tr do, I've integrated the pipeline into one awk invocation:

temp=$(sensors | awk '/Package id 0:/ {gsub(/\+/, ""); print $4}')
echo -e "\e[1;32m $temp \033[0m"

Upvotes: 2

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