bash script lowercase every string in the input file and output result to new file

Question

how to lowercase everything in a text file and then output the result to a new file in bash script? for example the input file contains

a
bC
D
E

output

a
bc
d
e

See also: http://stackoverflow.com/questions/2264428/converting-string-to-lower-case-in-bash-shell-scripting — Ja͢ck, May 12 '12 at 07:28

Prince John Wesley · Accepted Answer · 2012-05-12T12:44:39.213

4

Use tr command:

tr '[:upper:]' '[:lower:]' < infile > outfile

edited May 12 '12 at 12:44

answered May 12 '12 at 05:31

1 Answers1