(02-10-2020, 06:56 AM)venam Wrote:

(02-10-2020, 06:54 AM)injinj Wrote: The closure variable i is incremented after every invocation of hello, but if hello in a subprocess, then i doesn't change:

Code:

; echo `{hello ; hello ; hello}                                        
3 4 5
; echo `{hello ; hello ; hello}                                        
3 4 5

I think the second example of subprocess is missing.

I could run the same echo command 100 times and it will still print 3 4 5. The reason is that the shell environment is forked, and then hello is run 3 times. I can capture this with ps like this:


The 5205 process is the desh running in the terminal connected to pts/0, the 17xxx process are subshells spawned using the backquote operator, these are running the hello functions.