How to use multiple variable in for loop in sh? [duplicate]

Question

I want to use multiple variable in for loop at once in sh.

I have a query like this:

top -n 1 -b -c| awk -vOFS="\t" '{print $1,$2,$9}'

I know i use for loop in bash like this:

for i in {2..10}
do
    echo "output: $i"
done

what i want to try is:

for x y z in $(top -n 1 -b -c| awk -vOFS="\t" {print $1,$2,$9}')
do
    echo "output: $x $y $z"
done

Does this answer your question? How do I pipe a file line by line into multiple read variables? stackoverflow.com/questions/49906232/… — 0stone0
– 0stone0, Commented Feb 2, 2023 at 16:29
top -n 1 -b -c | while read -r x y _ _ _ _ _ _ z _; do echo "output: $x $y $z"; done — pjh
– pjh, Commented Feb 2, 2023 at 17:04

Barmar · Accepted Answer · 2023-02-02 16:28:33Z

2

Pipe to a while read loop:

top -n 1 -b -c| awk -vOFS="\t" '{print $1,$2,$9}' | while IFS=$'\t' read -r x y z
do
    echo "output: $x $y $z"
done

answered Feb 2, 2023 at 16:28

Barmar

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