Re: portable file touched during boot

[Andrew Cagney <andrew.cagney%gmail.com@localhost>]

On Thu, 21 May 2020 at 14:18, Martin Neitzel
<neitzel%hackett.marshlabs.gaertner.de@localhost> wrote:
>
> > I'm trying to hack up a Make rule that's only run once after a reboot
> > by having it depend on a file touched during boot.
>
> I find plenty of candidates in /var/run:
>
> % ls -lrt /var/run
> total 98
> drwxrwx---  2 root  operator    512 May  2 16:27 lvm
> -rw-r--r--  1 root  wheel     46793 May  2 16:28 dev.cdb
> -rw-r--r--  1 root  wheel         0 May  2 16:28 syslogd.sockets
> srw-rw-rw-  1 root  wheel         0 May  2 16:28 log
> -rw-r--r--  1 root  wheel         4 May  2 16:28 syslogd.pid
> drwxr-xr-x  2 root  wheel       512 May  2 16:28 named
> -rw-r--r--  1 root  wheel      7664 May  2 16:28 dmesg.boot
> -rw-r--r--  1 root  wheel         0 May  2 16:28 blacklistd.sockets
> srwxrwxrwx  1 root  wheel         0 May  2 16:28 blacklistd.sock
> -rw-r--r--  1 root  wheel         4 May  2 16:28 blacklistd.pid
> -rw-r--r--  1 root  wheel         3 May  2 16:28 ntpd.pid
> -rw-r--r--  1 root  wheel         4 May  2 16:28 powerd.pid
> -rw-r--r--  1 root  wheel         4 May  2 16:28 sshd.pid
> -rw-r--r--  1 root  wheel         4 May  2 16:28 cron.pid
> -rw-r--r--  1 root  wheel      5429 May  2 16:28 rc.log
> -rw-r--r--  1 root  wheel         5 May  7 22:47 inetd.pid
> -rw-rw-r--  1 root  utmp       1000 May 19 19:02 utmp
> -rw-rw-r--  1 root  utmp      18200 May 21 20:15 utmpx

Thanks.

> % last -1 reboot
> reboot    ~                     Sat May 02 16:28
>
>                                                 Martin Neitzel