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How to find whether or not a variable is empty in Bash
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In Bash at least the following command tests if $var is empty:
if [[ -z "$var" ]]; then
# Do what you want
fi
The command man test is your friend.
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Prevent Bootstrap Modal from disappearing when clicking outside or pressing escape? [duplicate]
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How to take MySQL database backup using MySQL Workbench?
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Select Include Create schema checkbox
Click on Advance option
Select Complete insert checkbox in Inserts Panel
Start Export
For Workbench 8.0
Go to Server tab
Go to Database Export
This opens up something like this
Select the schema to export in the Tables to export
Click on Export ...
Failed to build gem native extension (installing Compass)
When I attempt to install the latest version of compass ( https://rubygems.org/gems/compass/versions/1.0.0.alpha.17 ), I get the following error.
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How to remove all subviews of a view in Swift?
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I noticed that as well! I'll update the post once Xcode comes out of beta and the problem still persists.
– Bseaborn
Sep 1 '15 at 13:02
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How to save picture to iPhone photo library?
...WriteToSavedPhotosAlbum(UIImage *image,
id completionTarget,
SEL completionSelector,
void *contextInfo);
You only need completionTarget, completionSelector and contextInfo if you want to be notified whe...
Get the current user, within an ApiController action, without passing the userID as a parameter
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Get ID of last inserted document in a mongoDB w/ Java driver
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How do you return the column names of a table?
... instead of each table individually. See this question too: stackoverflow.com/questions/1062075/…
– jmosesman
Nov 26 '13 at 23:01
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