[Athens-pm] In which shell does a system call run

[Angelos Karageorgiou]

system always calls a shell and passes parameters to it


cat test.pl

system ("ps -fax | less");

($name,$aliases,$addrtype,$length, at addrs) = 
gethostbyname("smtp.myqnet.gr");
                 foreach  $addr (@addrs) {
                        ($a,$b,$c,$d) = unpack('C4',$addr);
                        print "$a.$b.$c.$d\n";
  }


output

11010 pts/11   Ss     0:00  \_ -bash
11034 pts/11   S+     0:00      \_ perl test.pl
11035 pts/11   S+     0:00          \_ sh -c ps -fax | less
11036 pts/11   R+     0:00              \_ ps -fax
11037 pts/11   R+     0:00              \_ less


--
Angelos Karageorgiou
Internet VOIP e-Services Unix Guru
Masters of Computer Science C.U.N.Y.
Tel: +30 210 7713372
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Web: http://www.unix.gr



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