Byron Clark wrote:
Unfortunately that only works if there is only one sshd process returned
by pidof. Here's the case I'm worried about:
/var/run/sshd.pid: 343
pidof sshd: 3433
And the case where add ^$ around the pid breaks:
/var/run/sshd.pid: 343
pidof sshd: 343 2452 2453
Yes of course. I foolishly only thought "how to avoid matching partial
numbers"
despite being aware of the general problem.
What we need are word boundaries: grep -q "\\b$(cat /var/run/sshd.pid)\\b"
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