On Sat, Feb 09, 2008 at 04:39:11PM -0800, Russ Allbery wrote: > This one is somewhat arguable. Pure POSIX doesn't allow signal numbers, > but the XSI extension to POSIX does and dash and posh both support them. > We do not, in general, accept XSI extensions, but it's hard to argue > strongly for excluding a feature that even posh supports.
Since 0.5.6, it does not; the only number it understands is the pseudo-signal 0, mandated by POSIX. The reason POSIX doesn't allow numbers is that they are inconsistent from platform to platform. People who learn signals on a commercial OS of yore sometimes assume that signal 5 means something other than SIGTRAP on Debian, and script traps and kills that end up not doing what is intended. When the names are used, this confusion is avoided. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
