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Rearrange columns using cut
...made up of
one
range, or many ranges separated by commas. Selected input is written
in the same order that it is read, and is written exactly once.
It reaches field 1 first, so that is printed, followed by field 2.
Use awk instead:
awk '{ print $2 " " $1}' file.txt
...
内存管理内幕：动态分配的选择、折衷和实现 - C/C++ - 清泛网 - 专注C/C++及内核技术
...include <unistd.h>
void malloc_init()
{
/* grab the last valid address from the OS */
last_valid_address = sbrk(0);
/* we don't have any memory to manage yet, so
*just set the beginning to be last_valid_address
*/
managed_memory_start = last_valid_address;
/* Okay, we're initialize...
Force an Android activity to always use landscape mode
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how to force an built-in activity like system image select library in landscape only or portrait only?
– LiangWang
Apr 23 '15 at 1:54
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Why is printing “B” dramatically slower than printing “#”?
... and click Options. After that click Editor and go to Formatting tab. Then select Anywhere in Line Wrap Option. It will take almost 6.24% less time to compile the program.
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How to get the children of the $(this) selector?
... parameter called context which can be used to override the context of the selection.
jQuery("img", this);
Which is the same as using .find() like this:
jQuery(this).find("img");
If the imgs you desire are only direct descendants of the clicked element, you can also use .children():
jQuery(t...
Can git be integrated with Xcode?
...indow. Since your working directory is set to the parent directory of the selected file the command is nice and short.
I have no connection at all with Decimus. I am just a satisfied user who has run thousands of commands through DTerm.
Edit: As of 27 August 2009 DTerm is free. If you bought your...
Is it possible to view bytecode of Class file? [duplicate]
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Better still is the fact that it does so while you have the source code selected.
You don't have to find the .class file in the bin directory to inspect it's bytecode.
To edit them
Using code:
ASM: Visitors based, very, very fast.
BCEL: Loads the bytecode as an in memory description of the cl...
Convert stdClass object to array in PHP
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$wpdb->get_results("SELECT ...", ARRAY_A);
ARRAY_A is a "output_type" argument. It can be one of four pre-defined constants (defaults to OBJECT):
OBJECT - result will be output as a numerically indexed array of row objects.
OBJECT_K - result ...
Delete files older than 15 days using PowerShell
....LastwriteTime -lt (Get-Date).AddDays(-15) ) -and (! $_.PSIsContainer)} | select name| Remove-Item -Verbose -Force -Recurse -ErrorAction SilentlyContinue
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Git Push into Production (FTP)
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This script is rather clumsy about selecting 'last updated files'. Check out this fork for a more elegant solution.
– quickshiftin
Feb 4 '14 at 19:16
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