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fix useless use of grep #4

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fix useless use of grep #4

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10 changes: 5 additions & 5 deletions lab03-running-testprog-for-the-first-time/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -43,7 +43,7 @@ abcdefghij^C
Normally SELinux Enforcing mode strikes fear into people - otherwise they wouldn't turn it off when it comes to running bespoke applications. So the natural question here is, if SELinux is in **Enforcing** mode, Why did this work? Let's look at the process table:

```
[james@selinux-dev selinux-hands-on-labs]$ ps -efZ | grep $(cat /var/run/testprog.pid)
[james@selinux-dev selinux-hands-on-labs]$ ps -fZp $(cat /var/run/testprog.pid)
unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 root 11666 11665 0 16:04 pts/0 00:00:00 /usr/bin/testprog /etc/testprog.conf /var/run/testprog.pid
```

Expand Down Expand Up @@ -109,7 +109,7 @@ Sep 07 16:17:04 selinux-dev testprog[11695]: Iteration count: -1
Once again it's working! However note this time:

```
[james@selinux-dev selinux-hands-on-labs]$ ps -efZ | grep $(cat /var/run/testprog.pid)
[james@selinux-dev selinux-hands-on-labs]$ ps -fZp $(cat /var/run/testprog.pid)
system_u:system_r:unconfined_service_t:s0 root 11695 1 0 16:17 ? 00:00:00 /usr/bin/testprog /etc/testprog.conf /var/run/testprog.pid
```

Expand Down Expand Up @@ -204,10 +204,10 @@ Using configuration file: /etc/testprog.conf
Wrote PID to /var/run/testprog.pid
Writing output to: /var/testprog/testprg.txt
Iteration count: -1
[james@selinux-dev selinux-hands-on-labs]$ ps -efZ | grep $(cat /var/run/testprog.pid)
[james@selinux-dev selinux-hands-on-labs]$ ps -fZp $(cat /var/run/testprog.pid)
unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 root 11819 11818 0 16:49 pts/0 00:00:00 /usr/bin/testprog /etc/testprog.conf /var/run/testprog.pid
...
[james@selinux-dev selinux-hands-on-labs]$ ps -efZ | grep 11818
[james@selinux-dev selinux-hands-on-labs]$ ps -fZp 11818
unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 root 11818 1221 0 16:49 pts/0 00:00:00 sudo /usr/bin/testprog /etc/testprog.conf /var/run/testprog.pid
...
[james@selinux-dev selinux-hands-on-labs]$ ps -efZ | grep bash
Expand All @@ -222,7 +222,7 @@ And through systemd:
sudo /usr/bin/testprog /etc/testprog.conf /var/run/testprog.pid
^C
[james@selinux-dev selinux-hands-on-labs]$ sudo systemctl start testprog
[james@selinux-dev selinux-hands-on-labs]$ ps -efZ | grep $(cat /var/run/testprog.pid)
[james@selinux-dev selinux-hands-on-labs]$ ps -fZp $(cat /var/run/testprog.pid)
system_u:system_r:unconfined_service_t:s0 root 11836 1 0 16:53 ? 00:00:00 /usr/bin/testprog /etc/testprog.conf /var/run/testprog.pid
...
[james@selinux-dev selinux-hands-on-labs]$ ps -efZ | grep systemd
Expand Down