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How do I use su to execute the rest of the bash script as that user?
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answered Jul 11 '14 at 11:35
Dan DascalescuDan Dascalescu
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How to convert Milliseconds to “X mins, x seconds” in Java?
...2199f);
– Nathan Schwermann
May 26 '11 at 4:20
7
Id suggest to use mod 60 instead of subtracting ...
std::string to char*
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answered Sep 8 '11 at 17:27
orlporlp
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Check if table exists in SQL Server
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akmadakmad
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What does LINQ return when the results are empty
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leppieleppie
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How to check what user php is running as?
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answered Oct 14 '11 at 18:03
mariomario
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When is null or undefined used in JavaScript? [duplicate]
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answered Jun 21 '11 at 17:29
kennebeckennebec
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How to find whether or not a variable is empty in Bash
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110
Presuming Bash:
var=""
if [ -n "$var" ]; then
echo "not empty"
else
echo "empty"
fi
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Unit Testing: DateTime.Now
...gt;();
timeMock.SetupGet(tp => tp.UtcNow).Returns(new DateTime(2010, 3, 11));
TimeProvider.Current = timeMock.Object;
However, when unit testing with static state, always remember to tear down your fixture by calling TimeProvider.ResetToDefault().
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Split column at delimiter in data frame [duplicate]
....frame.
I added a "x|y" line to avoid ambiguities:
df <- data.frame(ID=11:13, FOO=c('a|b','b|c','x|y'))
foo <- data.frame(do.call('rbind', strsplit(as.character(df$FOO),'|',fixed=TRUE)))
Or, if you want to replace the columns in the existing data.frame:
within(df, FOO<-data.frame(do.cal...