How can I repeat a command once for each file?
You can always type in the names of the files you want to process when writing the loop, but it's usually better to use wildcards. Try running this loop in the console:
for filename in seasonal/*.csv; do echo $filename; done
It prints:
seasonal/autumn.csv
seasonal/spring.csv
seasonal/summer.csv
seasonal/winter.csv
because the shell expands seasonal/*.csv
to be a list of four filenames
before it runs the loop.
This exercise is part of the course
Introduction to Shell
Exercise instructions
Modify the wildcard expression to people/*
so that the loop prints the names of the files in the people
directory
regardless of what suffix they do or don't have.
Please use filename
as the name of your loop variable.
Hands-on interactive exercise
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