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Top Forums Shell Programming and Scripting Write Linux script to convert timestamps older than 1.1.1970 to 1.1.1980 Post 302893178 by wisecracker on Monday 17th of March 2014 07:21:23 PM
Old 03-17-2014
Not sure if this is what you are after...
Only got OSX 10.7.5 with me at the moment, this uses BSD date command. My Linux machine is at work so the date format will probably be different...
You could try and create a negative epoch, (using BSD date in this example), something like:-
Code:
Last login: Mon Mar 17 23:16:53 on ttys000
AMIGA:barrywalker~> date -j -f "%d-%m-%Y" 19-02-1956 +%s
-437532136
AMIGA:barrywalker~> date -j -f "%d-%m-%Y" 19-02-1965 +%s
-153448929
AMIGA:barrywalker~> date -j -f "%d-%m-%Y" 19-12-1969 +%s
-1042918
AMIGA:barrywalker~> date -j -f "%d-%m-%Y" 31-12-1969 +%s
-6109
AMIGA:barrywalker~> _

And if the result IS negative then set as you require...
 

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NWFSTIME(1)							     nwfstime							       NWFSTIME(1)

NAME
nwfstime - Display / Set a NetWare server's date and time SYNOPSIS
nwfstime [ -h ] [ -S server ] [ -U user name ] [ -P password | -n ] [ -C ] [ -s ] DESCRIPTION
nwfstime displays a NetWare server's date and time. You can also set a NetWare server's date and time from the local time. OPTIONS
-h With -h nwfstime prints a little help text. -S server is the name of the server you want to use. -U user user is the user name to use for login. To set the server's time, you need supervisor privileges. -P password password is the password to use for login. If neither -n nor -P are given, and the user has no open connection to the server, nwfstime prompts for a password. -n -n should be given if no password is required for the login. As you need supervisor privileges for setting the date and time, this option is probably not used very often. -C By default, passwords are converted to uppercase before they are sent to the server, because most servers require this. You can turn off this conversion by -C. -s With -s, nwfstime sets the file server's date and time according to the local date and time. nwfstime 12/10/1996 NWFSTIME(1)
All times are GMT -4. The time now is 07:36 AM.
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