转自:http://www.gtwang.org/2011/05/linux-pdf.html PDF 檔雖然是一個跨平台的檔案格式,但 Adobe 只有提供免費的 Adobe Reader,要看 PDF 檔是沒有問題,但常常我們會需要對 PDF 檔做一些簡單的編輯,光靠 Adobe Reader 就沒有辦法處理,例如取出 PDF 檔中的某幾頁,或是將兩個 PDF 檔合併成一個 PDF 檔等,這些動作雖然簡單,但是 Adobe Reader 卻都沒有提供,有時也是很困擾. 這裡介紹一些在 Lin
core dump的概念: A core dump is the recorded state of the working memory of a computer program at a specific time, generally when the program has terminated abnormally (crashed). In practice, other key pieces of program state are usually dumped at the s