Hi Victor,
> > while [[ $f ]]; do ls -ld "$f"; f=${f%/*}; done; ls -ld /
>
> I had not come across that bash function ${f%/*} before.
There are various substitutions shells like bash(1) provide on variable
expansion that avoid having to kick off a sed. Here's some variations.
$s foo,bar,xyzzy
${s#*,} bar,xyzzy
${s##*,} xyzzy
${s%,*} foo,bar
${s%%,*} foo
${s/bar/prohibit} foo,prohibit,xyzzy
${s/o} fo,bar,xyzzy
${s//o} f,bar,xyzzy
${s//[aeiouy]/V} fVV,bVr,xVzzV
`#' and `%' are mnemonic in that `#$%' are on `345' on the keyboard with
`#' matching at the start of the variable and `%' matching at the end.
`/' is obviously traditional at this point, being the common `start of
pattern' character in ed(1)'s `s' substitute command.
The easy way to get a refresher is `man bash' and search for `##'.
Note, the pattern to search for isn't a regexp, more a glob.
Cheers, Ralph.
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