Include header in multiple .csv file with cat linux

sysrq

10/25/23, 8:20 PM

I need to include a .csv header in multiple .csv files at once by switching the name to:

originalname1c.csv, originalname2c.csv, originalname3c.csv

Currently, the procedure is done as follows:

cat header.csv originalname1.csv > originalname1c.csv
cat header.csv originalname2.csv > originalname2c.csv
cat header.csv originalname3.csv > originalname3c.csv

Etc.

Is it possible to add header to multiple files as in the above example in a single command?

additional one: what if the filenames were random? keeping the rule from: anyname.csv to anynamec.csv

167

1 + 0

command-line

Score:2

Ubuntu

steeldriver

10/25/23, 8:42 PM

In any POSIX compliant shell

for f in *.csv; do
  cat header.csv "$f" > "${f%.csv}c.csv"
done

The ${f%.csv} construct removes the .csv extension from the expansion of $f so that you can add back c.csv to the basename.

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EN: Include header in multiple .csv file with cat linux

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