~johanvandegriff/unix-shell-programming-revised-edition-programs

unix-shell-programming-revised-edition-programs/code/code2 -rw-r--r-- 98 bytes
fc214385 — Johan Vandegriff added other old scripts, some newer ones too 2 years ago 
                                                                                
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#!/bin/sh

root=`dirname $0`

cat $root/file.txt | tr 'aeiouAEIOU' 'eiouaEIOUA' > $root/file2.txt