I'm trying to run something like this

for n in 1 2 3 4 5 6 7
           run_this_command whatever.$nx$n.in

The files are named as whatever.1x1.in, whatever.2x2.in, whatever.3x3.in, etc.

The code I copied below does not work. How do I make it so I can have "nxn" in the file name inside the for loop?


Inside the loop, you want:

run_this_command "whatever.${n}x${n}.in"

so that the shell knows you're talking about $n, and not $nx.

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