Day of the week: Difference between revisions
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(→{{header|UNIX Shell}}: max date now 2121) |
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<pre>#! /bin/bash |
<pre>#! /bin/bash |
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for((i=2009; i <= |
for((i=2009; i <= 2121; i++)) |
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do |
do |
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date -d "$i-12-25" |grep Sun |
date -d "$i-12-25" |grep Sun |
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I.e., starting from year 2038, the <tt>date</tt> command (which uses the glibc library, at least on GNU systems), is not able to recognise the date as a valid one! |
I.e., starting from year 2038, the <tt>date</tt> command (which uses the glibc library, at least on GNU systems), is not able to recognise the date as a valid one! |
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===Different machine/OS version |
===Different machine/OS version (64 bit)=== |
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This is the same command run on RedHat Linux. |
This is the same command run on RedHat Linux. |
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<pre>bash-3.00$ date --version |
<pre>bash-3.00$ date --version |
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bash-3.00$ uname -a |
bash-3.00$ uname -a |
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Linux brslln01 2.6.9-67.ELsmp #1 SMP Wed Nov 7 13:56:44 EST 2007 x86_64 x86_64 x86_64 GNU/Linux |
Linux brslln01 2.6.9-67.ELsmp #1 SMP Wed Nov 7 13:56:44 EST 2007 x86_64 x86_64 x86_64 GNU/Linux |
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bash-3.00$ for((i=2009; i <= |
bash-3.00$ for((i=2009; i <= 2121; i++)); do date -d "$i-12-25" |egrep Sun; done |
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Sun Dec 25 00:00:00 GMT 2011 |
Sun Dec 25 00:00:00 GMT 2011 |
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Sun Dec 25 00:00:00 GMT 2016 |
Sun Dec 25 00:00:00 GMT 2016 |
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Sun Dec 25 00:00:00 GMT 2089 |
Sun Dec 25 00:00:00 GMT 2089 |
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Sun Dec 25 00:00:00 GMT 2095 |
Sun Dec 25 00:00:00 GMT 2095 |
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Sun Dec 25 00:00:00 GMT 2101 |
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Sun Dec 25 00:00:00 GMT 2107 |
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Sun Dec 25 00:00:00 GMT 2112 |
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Sun Dec 25 00:00:00 GMT 2118 |
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bash-3.00$</pre> |
bash-3.00$</pre> |
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