1月22日提交的PR今天被commit了，简单记录一下：
Problem Report ports/61767 [maintainer]update jakarta-tomcat5 to 5.0.18
这两天总有人在水木清华BBS上写信问我tomcat5的问题，很奇怪，默认的安装也不能用，我怀疑他的jdk好像有问题，推荐他用native的1.3，希望能解决问题。

Study the tar and the gzip commands. These connamds are the UNIX (Linux) version of pkzip or arj in Dos.
Write a script which backups you’re home directory into one compressed file in a subdirectory called backup of you’re home directory.
If you like you can study at and/or cron(tab) to schedule a daily or weekly backup of you’re home directory in one file.

继续阅读荷兰校友的作业-3 →

a) Write a script IsFilePresent which expects one parameter.
When a file is present in the current directory its output is:”File is present.” Else it’s output is: File is nto present.
Make sure the script gives a useful error if one or two or more parameters are given.
b) change the script from 4.a) so it will accept any number of parameters. (Hint: find information on the shift command).
c) Make the script of assignemnt4 b) interactively. So it will ask for a file name, state the presents of that file and ask if you want to type another filename or not.
If yes it asks for a new file name. Quit when “stop” is given as filename.

继续阅读荷兰校友的作业-2 →

1.Write a script which displeays the amount of times you are logged in to the system (it’s possible to logon more than once).
My answer is:
#!/usr/local/sbin/bash
echo You have logged in `/usr/bin/last |grep $USER |wc -l` times.
十分简单的题目，一开始没有想明白，本来想自己实现计数器，结果忽然想起来last这个命令已经提供了记录了，对数据整形一下就能直接用。