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Search and replace a line in a file in Python
... to a file, in-place:
import fileinput
for line in fileinput.input("test.txt", inplace=True):
print('{} {}'.format(fileinput.filelineno(), line), end='') # for Python 3
# print "%d: %s" % (fileinput.filelineno(), line), # for Python 2
What happens here is:
The original file is moved to...
Is it possible to create a multi-line string variable in a Makefile
...able substitution, it will cause command to split into multiple:
ANNOUNCE.txt:
echo $(ANNOUNCE_BODY) > $@ # doesn't work
Qouting won't help either.
The best way to pass value is to pass it via environment variable:
ANNOUNCE.txt: export ANNOUNCE_BODY:=$(ANNOUNCE_BODY)
ANNOUNCE...
How to append text to a text file in C++?
...fstream>
int main() {
std::ofstream outfile;
outfile.open("test.txt", std::ios_base::app); // append instead of overwrite
outfile << "Data";
return 0;
}
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What's the right way to decode a string that has special HTML entities in it? [duplicate]
...code is that tags are also preserved.
function decodeHtml(html) {
var txt = document.createElement("textarea");
txt.innerHTML = html;
return txt.value;
}
Example: http://jsfiddle.net/k65s3/
Input:
Entity:&nbsp;Bad attempt at XSS:<script>alert('new\nline?')</script>&l...
Linux equivalent of the Mac OS X “open” command [closed]
... any resource, use it like any of these examples:
] www.google.com
] file.txt
] ~/Pictures
] ssh://myserver.local/home/jeremy
Also this lets you open a file browser (e.g. Nautilus) in the current directory:
] .
From experience I have found that one-letter aliases work best for the above shortc...
Cross-thread operation not valid: Control 'textBox1' accessed from a thread other than the thread it
...Received(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
{
txt += serialPort1.ReadExisting().ToString();
SetText(txt.ToString());
}
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搭建高可用mongodb集群（二）—— 副本集 - 大数据 & AI - 清泛网 - 专注C/...
...est/replset/data
#进入mongodb文件夹
cd /data/mongodbtest
3、下载mongodb的安装程序包
wget http://fastdl.mongodb.org/linux/mongodb-linux-x86_64-2.4.8.tgz
注意linux生产环境不能安装32位的mongodb，因为32位受限于操作系统最大2G的文件限制。
...
How to effectively work with multiple files in Vim
...lso supports tab-completion on any part of the filename. Say, you have foo.txt open in buffer 2, you can type :b 2<Enter> or :b foo.txt or :b oo<Tab><Enter> to edit that file. Yes, the last one would complete 'oo' to 'foo.txt' when you press <Tab>.
– Sus...
What is “String args[]”? parameter in main method Java
...tion. For example, if I invoke the program like so:
$ java MyProg -f file.txt
Then args will be an array containing the strings "-f" and "file.txt".
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How do you move a commit to the staging area in git?
...Stage :(use "git reset HEAD ..." to unstage)
git reset HEAD git commands.txt
or git reset HEAD *ds.txt
here,
*--> all files end with ds.txt to unstage.
Refer the below pic for clarity:
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