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How to log cron jobs?
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* * * * * myjob.sh >> /var/log/myjob.log 2>&1
will log all output from the cron job to /var/log/myjob.log
You might use mail to send emails. Most systems will send unhandled cron job output by email to root or the corresponding user.
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:first-child not working as expected
I'm trying to select the first h1 inside a div with a class called detail_container . It works if h1 is the first element within this div , but if it comes after this ul it won't work.
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Measuring text width to be drawn on Canvas ( Android )
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There's actually three different ways of measuring text.
GetTextBounds:
val paint = Paint()
paint.typeface = ResourcesCompat.getFont(context, R.font.kaushanscript)
paint.textSize = 500f
paint.color = Color.argb(255, 3, 221, 252)
val co...
Unpivot with column name
...names (Maths, Science, English)? I am doing this operation to many tables, all with the same structure but with different column names.
– LBogaardt
Feb 8 '17 at 9:23
1
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Best way to store JSON in an HTML attribute?
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The HTML does not have to validate.
Why not? Validation is really easy QA that catches lots of mistakes. Use an HTML 5 data-* attribute.
The JSON object could be any size (i.e. huge).
I've not seen any documentation on browser limits to attribute sizes.
If you do run into them, ...
scopes with lambda and arguments in Rails 4 style?
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Supporting documentation, section 14.1 specifically.
– Dennis
Feb 4 '14 at 18:40
3
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For each row return the column name of the largest value
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If I have two equal columns I usually just pick the first. These are border cases which do not upset my statistical analysis.
– dmvianna
Jul 18 '13 at 23:59
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How to split a dos path into its components in Python
...y path straight to damnation. They won't realise until one day everything falls to pieces, and they -- or, more likely, somebody else -- has to work out why everything has gone wrong, and it turns out somebody made a filename that mixes slashes and backslashes -- and some person suggests that the an...
How do I insert a linebreak where the cursor is without entering into insert mode in Vim?
...i^M^[
Explanation:
[Ctrl+V] means "quote the following character" -- it allows you to embed the newline and escape characters in the command.
So you're mapping the 'g' key to the sequence: i [Enter] [Escape]
This is vim for insert a newline before the cursor, then exit insert mode.
Tweaks:
Y...
Pointers, smart pointers or shared pointers? [duplicate]
...assume you meant scoped pointer which uses the RAII pattern. It is a stack-allocated object that wraps a pointer; when it goes out of scope, it calls delete on the pointer it wraps. It "owns" the contained pointer in that it is in charge of deleteing it at some point. They allow you to get a raw ref...