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How to use SQL Order By statement to sort results case insensitive?
...Lite.) In this case, the suggestion to use lower() or upper() below is the one that works.
– marco
Aug 24 '18 at 10:45
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What does flushing the buffer mean?
...iting to a file. This is an expensive operation. If in your code you write one byte at a time, then each write of a byte is going to be very costly. So a common way to improve performance is to store the data that you are writing in a temporary buffer. Only when there is a lot of data is the buffer ...
How to check if a string contains a substring in Bash
...l! You can only omit the double quotes in the first argument to [[. See ideone.com/ZSy1gZ
– nyuszika7h
Jun 11 '14 at 17:53
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How can I list (ls) the 5 last modified files in a directory?
...t the 5 most-recently modified files:
ls -1t | head -5
The -1 (that's a one) says one file per line and the head says take the first 5 entries.
If you want the last 5 try
ls -1t | tail -5
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What does “dereferencing” a pointer mean?
...he pointer
To refer to the characters p points to, we dereference p using one of these notations (again, for C):
assert(*p == 'a'); // The first character at address p will be 'a'
assert(p[1] == 'b'); // p[1] actually dereferences a pointer created by adding
// p and 1 times ...
What is a .snk for?
...n the assembly along with the public key from the .snk.
Later on, when someone needs to verify the integrity of the strongly-named assembly, they build a hash of the assembly's contents, and use the public key from the assembly to decrypt the hash that came with the assembly - if the two hashes matc...
Why does Dijkstra's algorithm use decrease-key?
...hm that reinserts nodes into the priority queue with their new priorities, one node is added to the priority queue for each of the m edges in the graph. This means that there are m enqueue operations and m dequeue operations on the priority queue, giving a total runtime of O(m Te + m Td), where Te ...
What makes Lisp macros so special?
Reading Paul Graham's essays on programming languages one would think that Lisp macros are the only way to go. As a busy developer, working on other platforms, I have not had the privilege of using Lisp macros. As someone who wants to understand the buzz, please explain what makes this feature s...
`from … import` vs `import .` [duplicate]
...nd it doesn't work at all (python 2.6.5 Ubuntu).
– tkone
Feb 24 '12 at 23:33
6
You should use a t...
How do I prompt a user for confirmation in bash script? [duplicate]
...islevis85's suggestion (thanks!) and added the -n option to read to accept one character without the need to press Enter. You can use one or both of these.
Also, the negated form might look like this:
read -p "Are you sure? " -n 1 -r
echo # (optional) move to a new line
if [[ ! $REPLY =~ ^[Yy]$ ]...