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An “and” operator for an “if” statement in Bash
I'm trying to create a simple Bash script to check if the website is down and for some reason the "and" operator doesn't work:
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curl -GET and -X GET
Curl offers a series of different http method calls that are prefixed with a X, but also offers the same methods without. I've tried both and I can't seem to figure out the difference. Can someone explain to me quickly how these two operations differ?
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ERROR: permission denied for sequence cities_id_seq using Postgres
I'm new at postgres (and at database info systems all in all). I ran following sql script on my database:
4 Answers
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When does Java's Thread.sleep throw InterruptedException?
When does Java's Thread.sleep throw InterruptedException? Is it safe to ignore it? I am not doing any multithreading. I just want to wait for a few seconds before retrying some operation.
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Changing UIImage color
I'm trying to change color of UIImage. My code:
13 Answers
13
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Get the name of the currently executing method
$0 is the variable for the top level Ruby program, but is there one for the current method?
5 Answers
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What is so special about Generic.xaml?
I've been trying to figure out how to organize my ResourceDictionary files for reuse and sharing with other members of my team.
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Is type=“text/css” necessary in a tag?
I was wondering whether or not it is necessary to use <link rel="stylesheet" type="text/css" href=...> over <link rel="stylesheet" href=...> . The rel="stylesheet" marks the information that it is a stylesheet - so text/css doesn't actually add anything as far as I'm concerned.
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How to randomize (or permute) a dataframe rowwise and columnwise?
I have a dataframe (df1) like this.
8 Answers
8
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How to pass parameters to a view
I have a series of buttons which when clicked display a popup menu positioned just below the button. I want to pass the position of button to the view. How can I do that?
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