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Ubuntu bash script grepping and cutting on first column

I am trying to implement a bash script that will take the piped input and cut the first column and return a total. The difference is that the cut is not from a file, but from the piped input. For example:

total=$(cut -f1 $1 | numsum)
echo $total

Basically, in my scenario the first column will always be from the passed input.

Example usuage is:

 ./ "cat data.txt | grep -i status | grep something"

data.txt contains:

1 status
2 something

This will produce something like:


How can this be achieved? I have noticed the cut only works for files only. I cannot see any examples on Google.



I have managed to fix the issue myself. The code is:

total=$(eval $1 | awk '{sum+=$1} END {print sum}')
echo $total
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