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What does ^M character mean in Vim?
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Let's say your text file is - file.txt, then run this command -
dos2unix file.txt
It converts the text file from dos to unix format.
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How do I use the lines of a file as arguments of a command?
Say, I have a file foo.txt specifying N arguments
10 Answers
10
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tcp端口状态ESTABLISHED、TIME_WAIT、CLOSE_WAIT 、SYN_RECV等详解 - C/C++...
...方法，就是关闭socket的LINGER选项。但这种做法是TCP协议不推荐使用的，在某些情况下这个操作可能会带来错误。
5、SYN_SENT状态
SYN_SENT状态表示请求连接，当你要访问其它的计算机的服务时首先要发个同步信号给该端口，此时状...
git stash -> merge stashed change with current changes
... test-repo && cd test-repo && git init
echo test > test.txt
git add test.txt && git commit -m "Initial version"
# here's the interesting part:
# make a local change and stash it:
echo test2 > test.txt
git stash
# make a different local change:
echo test3 > test.tx...
How to create a file in Android?
... */
FileOutputStream fOut = openFileOutput("samplefile.txt",
MODE_PRIVATE);
OutputStreamWriter osw = new OutputStreamWriter(fOut);
// Write the string to the file
osw.write(TESTSTRING);
/* ...
When to wrap quotes around a shell variable?
... the literal single-quoted string.)
Wildcard expansion:
$ pattern='file*.txt'
$ ls $pattern
file1.txt file_other.txt
By contrast:
$ ls "$pattern"
ls: cannot access file*.txt: No such file or directory
(There is no file named literally file*.txt.)
$ ls '$pattern'
ls: cannot access $patte...
Redirect all output to file [duplicate]
...written to stderr, use 2> to redirect it. For example:
foo > stdout.txt 2> stderr.txt
or if you want in same file:
foo > allout.txt 2>&1
Note: this works in (ba)sh, check your shell for proper syntax
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各编程语言读写文件汇总 - C/C++ - 清泛网 - 专注C/C++及内核技术
...、C++
五、Java
PHP读写文件：
// 写文件
$fp = fopen("log.txt", "a");
fwrite($fp, $str);
fclose($fp);
// 读文件
$fp = fopen("log.txt", "r");
while(!feof($fp)) {
$line = fgets($fp);
echo $line;
}
fclose($fp);
C#读写文件：
using System.IO;
private void Re...
Tool for adding license headers to source files? [closed]
...r other pattern...
do
if ! grep -q Copyright $i
then
cat copyright.txt $i >$i.new && mv $i.new $i
fi
done
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How do I write output in same place on the console?
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Python 2
I like the following:
print 'Downloading File FooFile.txt [%d%%]\r'%i,
Demo:
import time
for i in range(100):
time.sleep(0.1)
print 'Downloading File FooFile.txt [%d%%]\r'%i,
Python 3
print('Downloading File FooFile.txt [%d%%]\r'%i, end="")
Demo:
import time
f...