README.txt

$ for i in $(seq 1 6); do echo $i; docker build -f Dockerfile$i -t yes$i .; done

$ docker images |grep yes                                                       
yes6                                            latest                  f9990aa719e0   5 minutes ago    239MB
yes5                                            latest                  caba2ac3b32e   7 minutes ago    239MB
yes3                                            latest                  9436a7799b45   7 minutes ago    239MB
yes4                                            latest                  9151f954fc08   14 minutes ago   239MB
yes1                                            latest                  fa30bf334735   24 minutes ago   239MB
yes2                                            latest                  4fdde5e9428c   32 minutes ago   239MB

$ export xxi=1; xxid=$(docker run -d yes$xxi); echo $xxid; docker exec $xxid ps aux | grep -v 'ps' | grep -v USER; docker kill $xxid                                                                                                                                                 -1-
16929c7ee36a672ef225f914a2e12f7c35a909117be8d548f36d56008e8620da
root           1  0.0  0.0  23052  1376 ?        Ss   14:43   0:00 /usr/bin/coreutils --coreutils-prog-shebang=yes /bin/yes
16929c7ee36a672ef225f914a2e12f7c35a909117be8d548f36d56008e8620da
$ export xxi=2; xxid=$(docker run -d yes$xxi); echo $xxid; docker exec $xxid ps aux | grep -v 'ps' | grep -v USER; docker kill $xxid
77c80c80b507eeaf687f3a14ff0e8e1dab633c3509084d98655cba8af786f86c
root           1  0.0  0.0  23052  1480 ?        Ss   14:43   0:00 /usr/bin/coreutils --coreutils-prog-shebang=yes /bin/yes
77c80c80b507eeaf687f3a14ff0e8e1dab633c3509084d98655cba8af786f86c
$ export xxi=3; xxid=$(docker run -d yes$xxi); echo $xxid; docker exec $xxid ps aux | grep -v 'ps' | grep -v USER; docker kill $xxid
ec240040ad52ad4a592cb48b3c41cb3598d455d126b77889dbc820bb57bd5c02
root           1  2.0  0.0  11920  2696 ?        Ss   14:43   0:00 /bin/sh /go_yes3.sh
root           7  0.0  0.0  23052  1388 ?        S    14:43   0:00 /usr/bin/coreutils --coreutils-prog-shebang=yes /bin/yes
ec240040ad52ad4a592cb48b3c41cb3598d455d126b77889dbc820bb57bd5c02
$ export xxi=4; xxid=$(docker run -d yes$xxi); echo $xxid; docker exec $xxid ps aux | grep -v 'ps' | grep -v USER; docker kill $xxid
44a99c9d83c8540d13b5f09d7d34afdd8c546c7300efc77b8346dbdec06c1b1e
root           1  0.0  0.0  11920  2728 ?        Ss   14:44   0:00 /bin/sh /go_yes4.sh
root           7  0.0  0.0  23052  1504 ?        S    14:44   0:00 /usr/bin/coreutils --coreutils-prog-shebang=yes /bin/yes
44a99c9d83c8540d13b5f09d7d34afdd8c546c7300efc77b8346dbdec06c1b1e
$ export xxi=5; xxid=$(docker run -d yes$xxi); echo $xxid; docker exec $xxid ps aux | grep -v 'ps' | grep -v USER; docker kill $xxid
a81a3a9c264b7986aa7af5b001ed51418ed6bfcc066609be556f74e2e46ae7ee
root           1  0.0  0.0  23052  1440 ?        Ss   14:44   0:00 /usr/bin/coreutils --coreutils-prog-shebang=yes /bin/yes
a81a3a9c264b7986aa7af5b001ed51418ed6bfcc066609be556f74e2e46ae7ee
$ export xxi=6; xxid=$(docker run -d yes$xxi); echo $xxid; docker exec $xxid ps aux | grep -v 'ps' | grep -v USER; docker kill $xxid
18ceeebe227a11aabf0a0eabc52bcb84d85ab8930279a32f1cb1189a34710d1b
root           1  2.0  0.0  23052  1444 ?        Ss   14:44   0:00 /usr/bin/coreutils --coreutils-prog-shebang=yes /bin/yes
18ceeebe227a11aabf0a0eabc52bcb84d85ab8930279a32f1cb1189a34710d1b

Dockerfile1

FROM redhat/ubi8

RUN yum install -y --disableplugin=subscription-manager procps

CMD /bin/yes

Dockerfile2

FROM redhat/ubi8

RUN yum install -y --disableplugin=subscription-manager procps

CMD ["/bin/yes"]

Dockerfile3

FROM redhat/ubi8

RUN yum install -y --disableplugin=subscription-manager procps

COPY go_yes3.sh /

CMD /go_yes3.sh

Dockerfile4

FROM redhat/ubi8

RUN yum install -y --disableplugin=subscription-manager procps

COPY go_yes4.sh /

CMD /go_yes4.sh

Dockerfile5

FROM redhat/ubi8

RUN yum install -y --disableplugin=subscription-manager procps

COPY go_yes5.sh /

CMD /go_yes5.sh hello

Dockerfile6

FROM redhat/ubi8

RUN yum install -y --disableplugin=subscription-manager procps

COPY go_yes6.sh /

CMD ["/go_yes6.sh","hello"]

go_yes3.sh

#!/bin/sh

echo $1

/bin/yes

go_yes4.sh

#!/bin/sh

echo $1

/bin/yes

go_yes5.sh

#!/bin/sh

echo $1

exec /bin/yes

go_yes6.sh

#!/bin/sh

echo $1

exec /bin/yes