大约有 40,000 项符合查询结果（耗时：0.0789秒） [XML]
Is file append atomic in UNIX?
...ger (linux seems to have it set to 4096).
This assume that you're talking all fully POSIX-compliant components. For instance, this isn't true on NFS.
But assuming you write to a log file you opened in 'O_APPEND' mode and keep your lines (including newline) under 'PIPE_BUF' bytes long, you should ...
How to pass macro definition from “make” command line arguments (-D) to C source code?
I usually pass macro definitions from "make command line" to a "makefile" using the option :
-Dname=value. The definition is accessible inside the makefile.
...
Simple logical operators in Bash
...
What you've written actually almost works (it would work if all the variables were numbers), but it's not an idiomatic way at all.
(…) parentheses indicate a subshell. What's inside them isn't an expression like in many other languages. It's a l...
Using Regex to generate Strings rather than match them
...elps me to generate loads of data for performance testing. It would be really cool to be able to specify a regex for Strings so that my generator spits out things which match this. Is there something out there already baked which I can use to do this? Or is there a library which gets me most of...
SQL Server Output Clause into a scalar variable
... its possible to skip that extra step (and intermediary table variable) if all I need is the resulting int.
– Benoittr
Apr 5 '11 at 21:33
...
How do I commit only some files?
...available on both branches you do
git stash # remove all changes from HEAD and save them somewhere else
git checkout <other-project> # change branches
git cherry-pick <commit-id> # pick a commit from ANY branch and apply it to the current
git checkout <first-p...
What is the difference between Modal and Push segue in Storyboards?
...visual indication:
A modal Segue is just one VC presenting another VC modally. The VCs don't have to be part of a navigation controller and the VC being presented modally is generally considered to be a "child" of the presenting (parent) VC. The modally presented VC is usually sans any navigatio...
How to use enum values in f:selectItem(s)
...list was large? And could I do this better? And is it possible to automatically "select" the item that the question have?
4...
How do I script a “yes” response for installing programs?
...mazon Linux instances and I have a couple scripts to populate data and install all the programs I work with, but a couple of the programs ask:
...
Adding VirtualHost fails: Access Forbidden Error 403 (XAMPP) (Windows 7)
I've got a XAMPP installation running on Windows 7.
9 Answers
9
...