The various sorts of backgrounding in Unix
In Unix, there's several ways to put processes into the background,each with its own different set of effects, because Unix processes havevarious sorts of connections to your foreground shell session: their process group , whether or not they areignoring SIGHUP signals, open file descriptors to your tty, and evenwhether or not the process has a controlling tty.
So, in order of increasing isolation, Unix has:
- simple backgrounding, where you start the program with
&and theshell doesn't wait for it
新年婉約
陶潛〈閒情賦〉裡那「十願」，都是卑微願望由於外在介入而受挫的哀嘆，低處未算低。「願在晝而為影，常依形而西東；悲高樹之多蔭，慨有時而不同！」最整全清亮，「高樹多蔭」的意象繁複沉靜，但做別人的影子，未免太
動員
專業界、文化界與學界就利東街的呼籲
要對話、不要對抗- 立即停止清拆利東街；
- 就「姻園」主題商場方案作公眾諮詢；
- 徹底檢討《市區重建策略》
「保存地方特色」、「保存區內居民的社區網絡」、「改善市區居民的生活質素」
投名狀
我不是苦主，但也一直為 星美集團作為成報投資者的欠薪傳聞 感到不忿，本來也打算與《投名狀》勢不兩立了。只是聽了葉寶琳的推薦，於是也擬去看，當天同行的靚仔是聽《黑鳥》大的，死都不肯去看這種荷李活大片，我竟便
An unpleasant thing about system administration
One of the unpleasant things about system administration is how it canturn me into a petty authoritarian, full of irritation with users thathave the temerity to 'break the rules' and not follow directions, evenif (or especially if) the rules are themselves impositions from outsidethat I myself dislike and object to. Instead of cheering on the users, Ibecome angry with them, apparently merely because they have the temerityto not do what I told them to. In some dark place in my mind, people not
Eavesdropping
Like it or not, Facebook has expanded from a website exclusively for college students to embrace each of us – professors and students alike. Whilst the social networking by Facebook has become addiction in our society, there is recent uproar about the intrusive nature of its News Feed. It’s as if our activity and personal affairs are suddenly broadcast everywhere, grabbing away our privacy and leaving us naked in front of nosey parkers.
I made a casual comment on this question last week during the lunch with my interns. When I
I made a casual comment on this question last week during the lunch with my interns. When I
There are really two GPL v2 licenses
While is only one GPL v2 license, there are effectively two versions ofthe GPL v2 that programs are licensed under: programs licensed under theGPL v2 (only), and programs licensed under 'GPL v2 or (at your option)any later version', depending on the license verbiage that the programitself uses. The FSF encourages the 'GPL v2 or any later version' one,but some people have not been so open ended.
When there was only one GPL license in common
《再看日常》聯展 (Daily Preview Exhibition)
This is a bowl of rice. Or a sheep on grass.
Daily Review reexamines the everyday with an artistic eye. After one year of art training, 23 students from Hong Kong Art School present what they find special in the trivial.
Participants
Chan Shi Chi, Kako Chan Ting Wai, Chan Wai Lam, Chow Kwok In, Heman Blue, Ho Ka Ki, Phoebe Hui, Kong Wing, Ophelia Kwong, Lam Ka Yan, Lau Nga Ting*, Lau Wai Kuen*, Ricky Leung, Terry Lo
假如讓我說下去
近來被譽為「正面到有d變態」、「真係好construstive」——本來自命gothic loita，正大感尷尬，誰知不旋踵，壞狀態就襲來，突然被負面情緒充滿，覺得世界與自己正以相反方向急速消逝，看見每個人，都想到「我要和這人毫無關係」或「「