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ssh “permissions are too open” error
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Keys need to be only readable by you:
chmod 400 ~/.ssh/id_rsa
If Keys need to be read-writable by you:
chmod 600 ~/.ssh/id_rsa
600 appears to be fine as well (in fact better in most cases, because you don't need to change file permissions later to edit it).
The relevant por...
Define make variable at rule execution time
...In this case, it sets the TMP variable to the result of the shell function call.
edit (in response to comments):
To create a unique variable, you could do the following:
out.tar :
$(eval $@_TMP := $(shell mktemp -d))
@echo hi $($@_TMP)/hi.txt
tar -C $($@_TMP) cf $@ .
rm -rf $($@_...
Visual Studio immediate window command for Clear All
...hem, some of which might even have their roots in MS-DOS DEBUG.EXE (specifically >d, >g, >p, >q, and >t come to mind).
Also worth noting, as it's only two keys to press: Context menu > Clear All invokes the same command and it can be navigated using keyboard. In the immediate wi...
How does zip(*[iter(s)]*n) work in Python?
...e each element is x. *arg unpacks a sequence into arguments for a function call. Therefore you're passing the same iterator 3 times to zip(), and it pulls an item from the iterator each time.
x = iter([1,2,3,4,5,6,7,8,9])
print zip(x, x, x)
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How can I add the new “Floating Action Button” between two widgets/layouts
I guess you have seen the new Android design guidelines, with the new "Floating Action Button" a.k.a "FAB"
10 Answers
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How can I update window.location.hash without jumping the document?
I have a sliding panel set up on my website.
9 Answers
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Open a new tab in gnome-terminal using command line [closed]
...gnome-terminal installed but you should be able to do this by using a DBUS call on the command-line using dbus-send.
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How to expire session due to inactivity in Django?
... just have to make some urls and views to return relevant data to the ajax calls regarding the session expiry.
when the user opts to "renew" the session, so to speak, all you have to do is set requeset.session['last_activity'] to the current time again
Obviously this code is only a start... but it...
Random color generator
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You can remove .split('') call. String already have Array indexer.
– ujeenator
Jul 27 '15 at 6:08
4
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How to add an auto-incrementing primary key to an existing table, in PostgreSQL?
...le named test1, to which you want to add an auto-incrementing, primary-key id (surrogate) column. The following command should be sufficient in recent versions of PostgreSQL:
ALTER TABLE test1 ADD COLUMN id SERIAL PRIMARY KEY;
Older Versions of PostgreSQL
In old versions of PostgreSQL (prior ...