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403 Forbidden vs 401 Unauthorized HTTP responses
...his status code for resources that are locked down by IP address ranges or files in my webroot that I don't want direct access to (i.e. a script must serve them).
– Kyle
May 9 '13 at 13:20
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How to check if a line is blank using regex
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Well I am reading a file from Java, line by line, so I assume that this will be ok.
– Adnan
Jun 10 '10 at 8:42
1
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git switch branch without discarding local changes
..., great! Just
commit. If not (error: Your local changes to the following files would be overwritten ...), you still have lots of options.
The easiest is probably git stash (as all the other answer-ers
that beat me to clicking post said). Run git stash save or git stash push,1 or just plain git s...
Environment variable substitution in sed
... can use other characters besides "/" in substitution:
sed "s#$1#$2#g" -i FILE
share
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Cannot add or update a child row: a foreign key constraint fails
... @SachinfromPune just add SET FOREIGN_KEY_CHECKS=0; at starting of mysql file and SET FOREIGN_KEY_CHECKS=1; at end of mysql file, reimport data
– inrsaurabh
Sep 15 '17 at 12:26
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“:” (colon) in C struct - what does it mean? [duplicate]
...his is what the new way of assigning to the structure looks like:"
struct file_operations fops = {
read: device_read,
write: device_write,
open: device_open,
release: device_release
};
The C99 (old, compatible) way looks like:
struct file_operations fops = {
.read = device_read,
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To switch from vertical split to horizontal split fast in Vim
...the accepted answer, as the current accepted answer will only work for two files. This answer is more complete.
– DrStrangepork
Aug 13 '15 at 17:53
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Objective-C pass block as parameter
...d functions to perform anything in background and on main queue.
blocks.h file
void performInBackground(void(^block)(void));
void performOnMainQueue(void(^block)(void));
blocks.m file
#import "blocks.h"
void performInBackground(void(^block)(void)) {
if (nil == block) {
return;
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How to perform Callbacks in Objective-C
...elegates. Here's an example of a custom delegate implementation;
Header File:
@interface MyClass : NSObject {
id delegate;
}
- (void)setDelegate:(id)delegate;
- (void)doSomething;
@end
@interface NSObject(MyDelegateMethods)
- (void)myClassWillDoSomething:(MyClass *)myClass;
- (void)myClassD...
How do I prompt for Yes/No/Cancel input in a Linux shell script?
...KeyChooser
5. Using readline's history
Example:
#!/bin/bash
set -i
HISTFILE=~/.myscript.history
history -c
history -r
myread() {
read -e -p '> ' $1
history -s ${!1}
}
trap 'history -a;exit' 0 1 2 3 6
while myread line;do
case ${line%% *} in
exit ) break ;;
* ...