Hi,
CF: a thread from bug-bash:
On 07/06/11 06:38, Chet Ramey wrote:
On 7/5/11 8:59 AM, Bruce Korb wrote:
Given that sort(1GNU) now has a sort-by-version-ordering (sort -V),
it would seem reasonable to do version comparisons without having
to do a series of fork & execs. In other words, abbreviate this:
min_os_ver=`
printf '2.6.27\n%s\n' "$LINUXRELEASE" | sort -V | head -1`
if test "X$min_os_ver" = "X2.6.27" ; then
into something like this:
if test "2.6.27" -Vle "$LINUXRELEASE" ; then
or add a different operator to [[ ]] contexts?
The issue is extremely nontrivial.
The normal case is to sort full releases. The goal in "sort -V" was to make
the usual case easy, not to make the authoritative solution for an intractable
problem. [...] In my little world, it would be quite convenient.
This is an excellent argument for a utility to perform version comparisons.
Such a program could be arbitrarily complex. This feature is too new to
know how it will evolve.
/usr/bin/test ?
Do this first in the binary then migrate to bash's test?
