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Remove duplicate entries using a Bash script [duplicate]
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417
You can sort then uniq:
$ sort -u input.txt
Or use awk:
$ awk '!a[$0]++' input.txt
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windows C++ gbk转为utf-8 - C/C++ - 清泛网 - 专注C/C++及内核技术
...de编码的长度
len=MultiByteToWideChar(CP_ACP,0,(char *)m_string, -1, NULL,0);//cp_acp指示了转换为unicode编码的编码类型
w_string=(wchar_t *)malloc(2*len+2);
memset(w_string,0,2*len+2);
//ansi到unicode转换
MultiByteToWideChar(CP_ACP, 0, (char *)m_string,-1,...
What is the PostgreSQL equivalent for ISNULL()
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edited Jan 14 '12 at 2:28
Erwin Brandstetter
439k9696 gold badges809809 silver badges969969 bronze badges
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Node.JS constant for platform-specific new line?
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answered Dec 28 '12 at 1:22
Will MunnWill Munn
5,08333 gold badges2020 silver badges2828 bronze badges
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How to write binary data to stdout in python 3?
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171
A better way:
import sys
sys.stdout.buffer.write(b"some binary data")
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Fixing JavaScript Array functions in Internet Explorer (indexOf, forEach, etc.) [closed]
...function(owner) {
var that= this;
if (arguments.length<=1) {
return function() {
return that.apply(owner, arguments);
};
} else {
var args= Array.prototype.slice.call(arguments, 1);
return function() {
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How do I strip non alphanumeric characters from a string and keep spaces?
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189
Add spaces to the negated character group:
@search_query = @search_query.gsub(/[^0-9a-z ]/i, ...
How do I query using fields inside the new PostgreSQL JSON datatype?
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180
Postgres 9.2
I quote Andrew Dunstan on the pgsql-hackers list:
At some stage there will p...
Find directory name with wildcard or similar to “like”
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1 Answer
1
Active
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How to write multiple line string using Bash with variables?
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kernel="2.6.39"
distro="xyz"
cat >/etc/myconfig.conf <<EOL
line 1, ${kernel}
line 2,
line 3, ${distro}
line 4 line
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EOL
cat /etc/myconfig.conf
This construction is referred to as a Here Document and can be found in the Bash man pages under man --pager='less -p "\s*Here Documents"'...