On Wednesday 19 Jan 2011 10:42:21 ali hagigat wrote: > I have two script files and I execute them as follows: > ------------------------------------- > #script1 > echo ppp > exit 0 > echo qqq > /root> ./script1 > ppp > ------------------------------------- > #script2 > if (exit 0) then > echo ppp > fi > /root> ./script2 > ppp > ------------------------------------- > In script1, when exit executes, it returns and immediately > shell(/bin/bash) returns too. Why in the second script shell completes > if command and does not return immediately? In script 2, what will be > the return value of shell? The option of exit or the return value of > echo?
In your second script, the "exit 0" part runs in a subshell, so "exit" exits that subshell (and I'm somewhat surprised that no semicolon is required after the closing bracket, but I may have missed something in the grammar). Try this: if exit 0; then echo ppp fi -- D.
