[root@localhost test]# vim program.c
[root@localhost test]# gcc program.c -o program
[root@localhost test]# ./program ; echo $?
program is executing
0
[root@localhost test]# ./program 1 2 3 ; echo $?
"program 1" is executing
48
[root@localhost test]# ./program && ./program 1 && ./program 2
program is executing
"program 1" is executing
[root@localhost test]#
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