In article <[🔎] 20080623080727.GA326@feivel.credativ.de> you wrote: > work in dash as well. I don't know in which shells a trap with a signal number > is guaranteed to work, but it seems to work well in dash. The signal numbers are different on various architectures. I think in the GNU world at least mach and FreeBSD kernels have different ones. So it is less a question of shell syntax but portability. Gruss Bernd