有时候你想在一个目录的所有子目录下批量建立文件夹，并且批量的运行这些子目录内新建立好的文件夹内的 IDL 程序，以下是一种可能的解决途径，如果你有更好的方法，欢迎告诉我 Here are the things I want to do: I have a data folder containing many sources, like Arp220, NGC981, etc.. Each of them possesses a folder under the whole data folder (./source/Arp220, ./source/NGC891, …). I want to create a subfolder named “plot” under each sources folder, e.g., ./source/Arp220/plot. And then I want…
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Obfuscated ssh Client under Linux
SSH is a powerful tool not only for astronomers. We often use it to download observation data from the observatory’s server or run some complicated programs on remote (overseas) servers. But for the reason as we all know, the SSH tunnels are always being obstructed. So we need some technique to get over such obstruction.…
Least-Squares Fitting of data containing errors
(This is a note personal only! ) There is a powerful tool dealing with data containing both “X” and “Y” errors to make a lease-square fitting in IDL, that is mpfit. This routine allows you to use a self-defined function to do the fitting. Also, you can set up some conditions such as the parameters’…
OSS 声卡驱动过期解决办法
前几天电脑没声音了，然后杯具的发现自己的OSS声卡驱动到期了（由于本人电脑的声卡极端特殊，所以当时只有OSS能够驱动）。突然意识到自己之前安装的OSS驱动rpm包到期了，提示我说 ＊Your Open Sound System evaluation license has expired oss4.2＊ 然后我就在Google的帮助下寻找各种办法解决。后来得到某人的提示，对啊：既然OSS的全称是Open Sound System，那么它一定得是符合GPL的吧。于是自己又再次到４front的网站上仔细看了看，发现source包的确是免费的，而编译好的rpm包是要收费的，试用期为6个月，之后就不能用了……好囧。于是今天动手亲自编译了一把，然后，我又重新会到了有声的世界。而且其实编译的过程一点也不复杂，所以，如果你需要的话，就从这里下载吧，然后自己动手，丰衣足食！