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What is an unsigned char?
...d since I posted this, you're better off using int8_t and uint8_t if you really want to represent small integers.
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Run command on the Ansible host
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Yes, you can run commands on the Ansible host. You can specify that all tasks in a play run on the Ansible host, or you can mark individual tasks to run on the Ansible host.
If you want to run an entire play on the Ansible host, then specify hosts: 127.0.0.1 and connection:local in the play,...
Shell脚本编程30分钟入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术
Shell脚本编程30分钟入门linux_shell_30min_guides什么是Shell脚本示例看个例子吧：#! bin shcd ~mkdir shell_tutcd shell_tutfor ((i=0; i<10; i++)); do touch test_$i.txt...
什么是Shell脚本
示例
看个例子吧：
#!/bin/sh
cd ~
mkdir shell_tut
cd shell_tut
for (...
How can I configure the font size for the tree item in the package explorer in Eclipse?
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Does your Eclipse .ini file contain a reference to 'smallFonts?' On Mac you might see something like...
-Dorg.eclipse.swt.internal.carbon.smallFonts
If you remove this line, you'll see the font size in various views fatten up.
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How can I remove non-ASCII characters but leave periods and spaces using Python?
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You can filter all characters from the string that are not printable using string.printable, like this:
>>> s = "some\x00string. with\x15 funny characters"
>>> import string
>>> printable = set(string.printable)
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PHP: How to generate a random, unique, alphanumeric string for use in a secret link?
...of an application. In particular, rand() and uniqid() are not cryptographically secure random number generators. See Scott's answer for a secure alternative.
If you do not need it to be absolutely unique over time:
md5(uniqid(rand(), true))
Otherwise (given you have already determined a unique l...
Qt 5.1.1: Application failed to start because platform plugin “windows” is missing
...roblem . After a long search I found a comment which had been ignored by all users pointing to the missing lib. Now, many months later, the comment has been changed to an answer. However, when I answered this question by msyself I intended to help other people by directly providing the solution. T...
Extract a substring according to a pattern
... sub to replace it with a colon first. For example, if the separator were _ then string <- sub("_", ":", string)
c(read.dcf(textConnection(string)))
## [1] "E001" "E002" "E003"
7) separate
7a) Using tidyr::separate we create a data frame with two columns, one for the part before the colon and o...
How to parse float with two decimal places in javascript?
I have the following code. I would like to have it such that if price_result equals an integer, let's say 10, then I would like to add two decimal places. So 10 would be 10.00.
Or if it equals 10.6 would be 10.60. Not sure how to do this.
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How to write a cron that will run a script every day at midnight?
...2
wd day of week 0-7 (Sunday = 0 or 7)
command: what you want to run
all numeric values can be replaced by * which means all
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