linux - PID of processes in docker container when run commands via && -


i wrote dockerfile , use cmd ["/bin/bash", "-c", "script1.sh && script2.sh" start container.

after running container, found process pid 1 process cmd column bash, , script2.sh child process.

f s   uid   pid  ppid  c pri  ni addr sz wchan  tty          time cmd             4 s     0     1     0  0  80   0 -  4491 wait   ?        00:00:00 bash            0 s     0     8     1  0  80   0 -  4494 wait   ?        00:00:00 script2 0 s     0    10     8 99  80   0 - 1632452 futex_ ?      00:01:05 java            4 s     0    64     0  0  80   0 -  4545 wait   ?        00:00:00 bash            0 r     0    79    64  0  80   0 -  1785 -      ?        00:00:00 ps

if use cmd [ "/bin/bash", "-c", "script2.sh" ], process pid 1 script2.sh.

could explain happen in first case?

in both cases, bash starts out pid 1.

for first example, bash going run command "script1.sh && script2.sh", first invoking subshell execute script1.sh, subshell execute script2.sh if script1.sh , subshell exited without errors. full output (i.e. ps -ef) show command /bin/bash -c "script1.sh && script2.sh".

for second example, bash running single command, , execs command. no subshell needed, , script2.sh can replace , becomes pid 1.


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