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How can I remove all text after a character in bash?
...
138
An example might have been useful, but if I understood you correctly, this would work:
echo "H...
提升速度：XP注册表与驱动优化 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...十六进制值(64M: 1000;128M: 4000;256M: 10000;512M或更大: 40000)。
3、去掉菜单延迟
把滑出菜单时的延迟去掉，可以在一定程度上加快XP。要修改的键值在HKEY_CURRENT_USERControl PanelDesktop。具体要修改的键名为“MenuShowDelay”，只需把值改为0...
How to generate keyboard events in Python?
... using ctypes:
import ctypes
from ctypes import wintypes
import time
user32 = ctypes.WinDLL('user32', use_last_error=True)
INPUT_MOUSE = 0
INPUT_KEYBOARD = 1
INPUT_HARDWARE = 2
KEYEVENTF_EXTENDEDKEY = 0x0001
KEYEVENTF_KEYUP = 0x0002
KEYEVENTF_UNICODE = 0x0004
KEYEVENTF_SCANCODE =...
How do you echo a 4-digit Unicode character in Bash?
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In UTF-8 it's actually 6 digits (or 3 bytes).
$ printf '\xE2\x98\xA0'
☠
To check how it's encoded by the console, use hexdump:
$ printf ☠ | hexdump
0000000 98e2 00a0
0000003
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How to call base.base.method()?
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answered Sep 14 '15 at 10:23
EvkEvk
79.4k88 gold badges100100 silver badges148148 bronze badges
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Pandas DataFrame Groupby two columns and get counts
...).reset_index().groupby('col2')[[0]].max()
Out[56]:
0
col2
A 3
B 2
C 1
D 3
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How does the Java 'for each' loop work?
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1193
for (Iterator<String> i = someIterable.iterator(); i.hasNext();) {
String item = i.nex...
Replace all 0 values to NA
...me space for it. E.g.,
data.frame(x = c(1, NA, 2))
# x
# 1 1
# 2 NA
# 3 2
Also, the data frame structure requires all the columns to have the same number of elements so that there can be no "holes" (i.e., NULL values).
Now you could replace zeroes by NULL in a data frame in the sense of com...
What happens to a declared, uninitialized variable in C? Does it have a value?
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edited Aug 17 at 13:34
klutt
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answered ...
What's the purpose of git-mv?
...for git mv oldname newname (see this answer).
– Ajedi32
Jun 11 '14 at 21:28
6
Note that git mv is...