大约有 10,000 项符合查询结果（耗时：0.0351秒） [XML]
Create an index on a huge MySQL production table without table locking
... MySQL is really, really stupid about this (and a few other things).
Test Script:
(
for n in {1..50}; do
#(time mysql -uroot -e 'select * from website_development.users where id = 41225\G'>/dev/null) 2>&1 | grep real;
(time mysql -uroot -e 'update website_development.users ...
Can scrapy be used to scrape dynamic content from websites that are using AJAX?
...ee that I've filtered request down to XHR - these are requests made by javascript code.
Tip: log is cleared every time you load a page, at the bottom of the picture, the black dot button will preserve log.
After analyzing requests and responses you can simulate these requests from your web-crawler...
What is the iBeacon Bluetooth Profile
...00
minor: 0000
meaured power at 1 meter: 0xc5 = -59
I have this node.js script working on Linux with the sample AirLocate app example.
share
|
improve this answer
|
follow...
Skip certain tables with mysqldump
...s not a typo).
If you want to ignore multiple tables you can use a simple script like this
#!/bin/bash
PASSWORD=XXXXXX
HOST=XXXXXX
USER=XXXXXX
DATABASE=databasename
DB_FILE=dump.sql
EXCLUDED_TABLES=(
table1
table2
table3
table4
tableN
)
IGNORED_TABLES_STRING=''
for TABLE in "${EXCLUDED_TABLES[...
Controlling a USB power supply (on/off) with Linux
...ll to perform a redirect, then output something into the redirected file descriptor.
– dig
May 12 '15 at 19:26
...
How to replace ${} placeholders in a text file?
...
Use /bin/sh. Create a small shell script that sets the variables, and then parse the template using the shell itself. Like so (edit to handle newlines correctly):
File template.txt:
the number is ${i}
the word is ${word}
File script.sh:
#!/bin/sh
#Set v...
Difference between Pig and Hive? Why have both? [closed]
...ty comfortable with SQL. Its philosophy was that we don't need yet another scripting language. Hive supports map and reduce transform scripts in the language of the user's choice (which can be embedded within SQL clauses). It is widely used in Facebook by analysts comfortable with SQL as well as by ...
rsync: how can I configure it to create target directory on server?
...
Thanks, this works. In my case I was running a local bash script on a remote server and within that running the ssh mkdir command which was executing, but then killing the rest of the script before running the rsync command. This allows the rest of the script to run without issues.
...
The server principal is not able to access the database under the current security context in SQL Se
...ers_login" like you would after restoring a db). A stock (cursor driven) script to re-sync all accounts is attached:
USE <your database>
GO
-------- Reset SQL user account guids ---------------------
DECLARE @UserName nvarchar(255)
DECLARE orphanuser_cur cursor for
SELECT UserName ...
How to check if remote branch exists on a given remote repository?
...
I needed to do a test in a bash script and so was only really interested in the exit code, so I did the following in a local clone: git ls-remote --exit-code . origin/branch-name &> /dev/null then used $? as the test operand
– D...