How to copy and rename folders using bash? -

i have many folders similar names

sim00  sim01 sim02

and more. have file want copy of them named test.dat , copy them new folder named analysis , give them new name , such test_0.dat, test_1.dat , on.

here have tried far.

counter=0; value in "sim*/test.dat"; cp "$value" "analysis/${value%.dat}_$counter.dat ; ((counter++)); done

however, not work. can show me different solution?

the rule "quote variables" doesn't should quote wildcards, too. enclosing asterisk in double quotes prevents expansion.

you need remove path filename:

#! /bin/bash counter=0 file in sim*/test.dat;     cp "$file" analysis/test_"$counter".dat     ((counter++)) done

Dil