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Top Forums UNIX for Advanced & Expert Users how to check how long the process has been running. Post 302225926 by redoubtable on Sunday 17th of August 2008 08:12:56 PM
Old 08-17-2008
ps will not help you because it gives you the CPU time. A very simple workaround for this is checking the ctime or mtime of a file created when that process began execution. As such, you can just go ahead and see the date in ls -ld /proc/PID-OF-YOUR-PROCESS.

Example:
Code:
Tsunami comparing # ls -ld /proc/1
dr-xr-xr-x 5 root root 0 2008-08-17 22:21 /proc/1
Tsunami comparing # uptime
 01:11:18 up  2:50,  5 users,  load average: 0.05, 0.06, 0.02
Tsunami comparing # date
Mon Aug 18 01:11:24 WEST 2008
Tsunami comparing #

The creation of init process (PID 1) is more or less when the system started.
 

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socklog-check(8)					      System Manager's Manual						  socklog-check(8)

NAME
socklog-check - checks for the availability of a socklog(8) service. SYNOPSIS
socklog-check [-v] [unix [address]] DESCRIPTION
socklog-check attempts to connect to a socklog(8) unix service and reports whether the connection attempt succeeded or not. It connects to the datagram oriented unix domain socket address, and reports success through the return code. If address is not specified, socklog-check attempts to connect to /dev/log. When running services that use the syslog facility under runit's service supervision, socklog-check should be added to the top of the ser- vice's run script to ensure that no syslog messages are generated until a syslog service is up and running to process the messages, e.g.: #!/bin/sh socklog-check || exit 1 exec service_using_syslog OPTIONS
-v verbose. Print verbose message to standard error. EXIT CODES
On success socklog-check returns 0. On error, socklog-check prints a message to standard error and exits 111. SEE ALSO
socklog(8), socklog-conf(8), svlogd(8), tryto(1), uncat(1), sv(8), runsv(8), runsvdir(8) http://smarden.org/socklog/ http://smarden.org/runit/ AUTHOR
Gerrit Pape <pape@smarden.org> socklog-check(8)
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