Pattern: Use of tr with duplicate characters
Issue: -
tr is for transliteration, turning some characters into other characters. It doesn't match strings or words, only individual characters.
The solution is to use a tool that does string search and replace, such as sed.
Example of incorrect code:
echo 'hello world' | tr 'hello' 'goodbye'In this case, it transliterates h->g, e->o, l->d, o->y, resulting in the string "goddb wbrdd" instead of "goodbye world".
Example of correct code:
echo 'hello world' | sed -e 's/hello/goodbye/g'