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Shell Programming and Scripting
Using grep command to detect presence of script run
Post 302895677 by MadeInGermany on Tuesday 1st of April 2014 06:31:02 PM
04-01-2014
pidfiles have their own pitfalls ( pidfalls 
).
For example, they must be at a volatile location like the /var/run/ that some Unix provide.
).For example, they must be at a volatile location like the /var/run/ that some Unix provide.
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LEARN ABOUT XFREE86
systemd-volatile-root.service
SYSTEMD-VOLATILE-ROOT.SERVICE(8) systemd-volatile-root.service SYSTEMD-VOLATILE-ROOT.SERVICE(8) NAME
systemd-volatile-root.service, systemd-volatile-root - Make the root file system volatile SYNOPSIS
systemd-volatile-root.service /lib/systemd/systemd-volatile-root DESCRIPTION
systemd-volatile-root.service is a service that replaces the root directory with a volatile memory file system ("tmpfs"), mounting the original (non-volatile) /usr inside it read-only. This way, vendor data from /usr is available as usual, but all configuration data in /etc, all state data in /var and all other resources stored directly under the root directory are reset on boot and lost at shutdown, enabling fully stateless systems. This service is only enabled if full volatile mode is selected, for example by specifying "systemd.volatile=yes" on the kernel command line. This service runs only in the initial RAM disk ("initrd"), before the system transitions to the host's root directory. Note that this service is not used if "systemd.volatile=state" is used, as in that mode the root directory is non-volatile. SEE ALSO
systemd(1), systemd-fstab-generator(8), kernel-command-line(7) systemd 237 SYSTEMD-VOLATILE-ROOT.SERVICE(8)