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Environment variable substitution in sed
... can use other characters besides "/" in substitution:
sed "s#$1#$2#g" -i FILE
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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,
...
Why does an image captured using camera intent gets rotated on some devices on Android?
...mgur.com/DvpvklR.png").into(imageView);
Or
Picasso.with(context).load("file:" + photoPath).into(imageView);
This will autodetect rotation and place image in correct orientation
Picasso is a very powerful library for handling images in your app includes:
Complex image transformations with mini...
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;
...
Rake just one migration
...ioned here is the integer value at the beginning of each of your migration files (which is just the timestamp of when it was created). For example, VERSION=20150720023630.
– aaron-coding
Jul 20 '15 at 21:36
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How can i use iptables on centos 7? [closed]
...
I modified the /etc/sysconfig/ip6tables-config file changing:
IP6TABLES_SAVE_ON_STOP="no"
To:
IP6TABLES_SAVE_ON_STOP="yes"
And this:
IP6TABLES_SAVE_ON_RESTART="no"
To:
IP6TABLES_SAVE_ON_RESTART="yes"
This seemed to save the changes I made using the iptables c...
“Incorrect string value” when trying to insert UTF-8 into MySQL via JDBC?
...server property character_set_server to utf8mb4 in the MySQL configuration file. It seems that Connector/J defaults to 3-byte Unicode otherwise:
For example, to use 4-byte UTF-8 character sets with Connector/J, configure the MySQL server with character_set_server=utf8mb4, and leave characterEnco...
Installing rmagick on Ubuntu
...ick installations, reinstall required packages and then symlink the config file:
sudo apt-get purge graphicsmagick graphicsmagick-dbg imagemagick-common imagemagick imagemagick-6.q16 libmagickcore-6-headers libmagickwand-dev graphicsmagick-libmagick-dev-compat
sudo apt-get autoremove
sudo apt-get i...