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Want to use Perl/Tk for graphical tool in perl script. But it is not installed in my current RedHat Enterprise 5. Does anybody can give me a hint which package contain it and where I can download it. Thanks.

I know it is a newbie question. But it confuse me for a long time. Every time I use command "setenv PATH $HOME/bin" to add the $HOME/bin to the $PATH. After I logout and login, the $HOME/bin is disappeared from the $PATH. I have to redo command "setenv PATH $HOME/bin" to add the $HOME/bin to the...

For more than one time, once I run the following code to untar several files (total ~4G), the remote server always crash. I use ssh to reach remote server. The final data is around ~30G. I am wondering does this code cause memory leak? Or it eat all CPU space? I do not have any knowledge...

Is there any easy code I can do the following task. Thanks. From the file 1, collect 3 highest score of each id then output to the file 2. File 1: id score hs_ref_chr1 1199 hs_ref_chr1 910 hs_ref_chr1 781 hs_ref_chr1 434 hs_ref_chr1 511 hs_ref_chr1 638 hs_ref_chr1 458 hs_ref_chr1...

Every thing was fine before I change a new monitor. After that, no matter I open an software, when I maximum it, the application always go out of the screen edge. I have to move it back a little bit then I can see the "Maximum", the "Minimize" and the "close" button in the top right corn. It is...

When do the calculation of division, how can I keep only two dicimal? For example, I want keep 0.67 instead of 0.66666666666.... when I do 2/3.