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Error when trying to obtain a certificate: The specified item could not be found in the keychain
...arts of apple ecosystem that are just insane :)
– alex
Apr 18 '16 at 13:39
2
This solved it for m...
How to check if a string is a valid hex color representation?
For example:
7 Answers
7
...
Changing variable names in Vim
.../gc<left><left><left>
Put this to your .vimrc or just execute.
After this pressing gr on the local variable will bring you to :s command where you simply should enter new_variable_name and press Enter.
sh...
How to move screen without moving cursor in Vim?
...th zz, if you happen to have Caps Lock on accidentally, you will save and exit vim!)
zt - move current line
to the top of the screen
zb - move
current line to the bottom of the
screen
share
|
impr...
Determine if a function exists in bash
Currently I'm doing some unit tests which are executed from bash. Unit tests are initialized, executed and cleaned up in a bash script. This script usualy contains an init(), execute() and cleanup() functions. But they are not mandatory. I'd like to test if they are or are not defined.
...
What is the difference between vmalloc and kmalloc?
...ndling of a system call, should I specify GFP_ATOMIC ? Is a system call executed in an atomic context?
7 Answers
...
Python timedelta in years
... rather stick with the standard library, the answer is a little more complex::
from datetime import datetime
def yearsago(years, from_date=None):
if from_date is None:
from_date = datetime.now()
try:
return from_date.replace(year=from_date.year - years)
except ValueError...
How to check if a stored procedure exists before creating it
I have a SQL script that has to be run every time a client executes the "database management" functionality. The script includes creating stored procedures on the client database. Some of these clients might already have the stored procedure upon running the script, and some may not. I need to have...
How to sort git tags by version string order of form rc-X.Y.Z.W?
...
The -V argument isn't available on the OS X(10.8)-provided version (5.93) of sort. :(
– Julien
Jan 3 '14 at 14:46
...
Is there a splice method for strings?
...aster to slice the string twice, like this:
function spliceSlice(str, index, count, add) {
// We cannot pass negative indexes directly to the 2nd slicing operation.
if (index < 0) {
index = str.length + index;
if (index < 0) {
index = 0;
}
}
return str.slice(0, inde...