05-16-2001
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1. UNIX for Dummies Questions & Answers
Dear Guys ,
I have some Questions , i need to have answeres for .
1. now if i took a back up for /etc/passwd and /etc/shadow , like simple copy .. and Install a new system , and paste those two files to the new system ... are the passwords and user info. going to work ?? is it posibble ?
... (1 Reply)
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2. Programming
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4. UNIX for Dummies Questions & Answers
Hello,
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5. Programming
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8. UNIX for Dummies Questions & Answers
Hello.
I like Linux and C programming language. Allways wanted to understand kernel and become a Linux system programmer. And I also like Objective-C and iOS. These two programming areas have relations:
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9. UNIX for Dummies Questions & Answers
Type in commands that do the following.
Part 1
Send the output to a textfile using the "script" command.
Attach the "script" file with your output. Don't worry about any mistakes while you are typing - you don't need to do it over and you don't need to clean up your script file.
1) ... (1 Reply)
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LEARN ABOUT CENTOS
uuid_time
UUID_TIME(3) Libuuid API UUID_TIME(3)
NAME
uuid_time - extract the time at which the UUID was created
SYNOPSIS
#include <uuid.h>
time_t uuid_time(uuid_t uu, struct timeval *ret_tv)
DESCRIPTION
The uuid_time function extracts the time at which the supplied time-based UUID uu was created. Note that the UUID creation time is only
encoded within certain types of UUIDs. This function can only reasonably expect to extract the creation time for UUIDs created with the
uuid_generate_time(3) and uuid_generate_time_safe(3) functions. It may or may not work with UUIDs created by other mechanisms.
RETURN VALUES
The time at which the UUID was created, in seconds since January 1, 1970 GMT (the epoch), is returned (see time(2)). The time at which the
UUID was created, in seconds and microseconds since the epoch, is also stored in the location pointed to by ret_tv (see gettimeofday(2)).
AUTHOR
Theodore Y. Ts'o
AVAILABILITY
libuuid is part of the util-linux package since version 2.15.1 and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
SEE ALSO
uuid(3), uuid_clear(3), uuid_compare(3), uuid_copy(3), uuid_generate(3), uuid_is_null(3), uuid_parse(3), uuid_unparse(3)
util-linux May 2009 UUID_TIME(3)