Visit Our UNIX and Linux User Community

Linux and UNIX Man Pages

Test Your Knowledge in Computers #61
Difficulty: Easy
A computer on a LAN segment is uniquely identified by its MAC address.
True or False?
Linux & Unix Commands - Search Man Pages

zdump(8) [bsd man page]

ZDUMP(8)						      System Manager's Manual							  ZDUMP(8)

NAME
zdump - time zone dumper SYNOPSIS
zdump [ -v ] [ -c cutoffyear ] [ zonename ... ] DESCRIPTION
Zdump prints the current time in each zonename named on the command line. These options are available: -v For each zonename on the command line, print the current time, the time at the lowest possible time value, the time one day after the lowest possible time value, the times both one second before and exactly at each time at which the rules for computing local time change, the time at the highest possible time value, and the time at one day less than the highest possible time value. Each line ends with isdst=1 if the given time is Daylight Saving Time or isdst=0 otherwise. -c cutoffyear Cut off the verbose output near the start of the given year. FILES
/usr/share/zoneinfo standard zone information directory SEE ALSO
newctime(3), tzfile(5), zic(8) ZDUMP(8)

Check Out this Related Man Page

ZDUMP(8)						    BSD System Manager's Manual 						  ZDUMP(8)

NAME
zdump -- timezone dumper SYNOPSIS
zdump [--version] [-v] [-c [loyear,]hiyear] [zonename ...] DESCRIPTION
The zdump utility prints the current time in each zonename named on the command line. The following options are available: --version Output version information and exit. -v For each zonename on the command line, print the time at the lowest possible time value, the time one day after the lowest possible time value, the times both one second before and exactly at each detected time discontinuity, the time at one day less than the high- est possible time value, and the time at the highest possible time value, Each line ends with isdst=1 if the given time is Daylight Saving Time or isdst=0 otherwise. -c loyear,hiyear Cut off verbose output near the start of the given year(s). By default, the program cuts off verbose output near the starts of the years -500 and 2500. LIMITATIONS
The -v option may not be used on systems with floating-point time_t values that are neither float nor double. Time discontinuities are found by sampling the results returned by localtime at twelve-hour intervals. This works in all real-world cases; one can construct artificial time zones for which this fails. SEE ALSO
ctime(3), tzfile(5), zic(8) BSD
June 20, 2004 BSD

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Calculating start and end of UK summertime

I have a need to calculate when British Summer Time starts and ends. After messing around, the following seems to work in Bash. echo `date +%Y`-03-`cal 3 \`date +%Y\` | grep -oE "^]{2}" | tail -1`T01:00:00Zand echo `date +%Y`-03-`cal 10 \`date +%Y\` | grep -oE "^]{2}" | tail ... (10 Replies)
Discussion started by: esb4me
10 Replies

2. Shell Programming and Scripting

For loop with one variable as the name of other

Hello all, I find it hard to explain what I need so I will post the code OVZINCLUDE="16810 16811 1689" PLUS_16810="test" PLUS_16811="test" for VPS in $OVZINCLUDE do echo "Dumping VPSes: $OVZINCLUDE " vzdump --compress --snapshot ${PLUS_$VPS} $VPS done ... (2 Replies)
Discussion started by: click
2 Replies

3. HP-UX

DST change on Compaq Tru64

Hello all, I hope someone can help me. We have Compaq Tru64 UNIX V5.1B (Rev. 2650). By latest Belarus government act Europe/Minsk timezone was changed to GMT+3 without DST (was GMT+2 with DST). Please advice how to do changes on our machine. Thank You in advance, md1982 (15 Replies)
Discussion started by: md1982
15 Replies

4. Programming

TZ, localtime and strftime problem on AIX and Solaris

Hello all, I have the following code that seems to be misbehaving depending on the timezone setting (TZ Environment variable). It gives the correct value when TZ is in POSIX format and the wrong value when in OLSON format. #include <stdio.h> #include <stdlib.h> #include <time.h> #include... (6 Replies)
Discussion started by: biju64
6 Replies

5. Solaris

How to backup ZFS filesystems to files on USB drive?

Dear Solaris 10 Experts, I need to carry out a manual backup of all zpool/zfs filesystems on a Solaris 10 x86 server in order to port it onto VM Ware hardware but don't know how to do it. Past exercises have been smooth using ufsdump & ufsrestore for small standalone servers. Below are the zfs... (22 Replies)
Discussion started by: gjackson123
22 Replies

6. Virtualization and Cloud Computing

OpenVZ domains/sites stopped working after restore

Hello, i created .tgz backups of my vms using vzdump. I accidentally deleted vms, its files just disappeared i dont know how. So what i did is that i restored backups by vzdump, but result is that i can SSH into a VM etc, i can also use their IP to access control panel on VPS, BUT, domains not... (0 Replies)
Discussion started by: postcd
0 Replies

7. AIX

Timezone issues -- Daylight savings

Hello, I like to set the CDT timezone, but it shows CST still even after I activated the DayLight Time cat /etc/environment | grep TZ TZ=CST6CDT Now looking at date: root@test8:/>date Tue Dec 20 05:34:45 CST 2016 How can I make it from CST to CDT ? thanks (5 Replies)
Discussion started by: filosophizer
5 Replies

8. Solaris

Solaris 11 Daylight Saving Time

Hello, Quick question: How do I verify if my Solaris 11 hosts/zones, configured with NTP, would change automatically to the DST? Thanks! (1 Reply)
Discussion started by: feroccimx
1 Replies

9. Shell Programming and Scripting

Bug in Gnu date?

So as I write this today is two days after the clocks go back here in the UK. I have a script that worked last week. Yesterday it developed a bug. I eventually found the culprit is Gnu Date. $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 16.04.5 LTS... (10 Replies)
Discussion started by: apmcd47
10 Replies

Featured Tech Videos