Hello;
Section 3.5.3 Shell Parameter Expansion in the manual has a repeated phrase in
the ${parameter%word} description, "If the pattern matches If the pattern
matches".
${parameter%word}${parameter%%word}
The word is expanded to produce a pattern and matched according to the
rules described below (see Pattern Matching
<https://www.gnu.org/software/bash/manual/bash.html#Pattern-Matching>). If
the pattern matches If the pattern matches a trailing portion of the
expanded value of parameter, then the result of the expansion is the value
of parameter with the shortest matching pattern (the ‘%’ case) or the
longest matching pattern (the ‘%%’ case) deleted. If parameter is ‘@’ or ‘*’,
the pattern removal operation is applied to each positional parameter in
turn, and the expansion is the resultant list. If parameter is an array
variable subscripted with ‘@’ or ‘*’, the pattern removal operation is
applied to each member of the array in turn, and the expansion is the
resultant list.
Regards,
Robert
