[SAC-HELP] Changing Directories in SAC

[rc202388 at ucla.edu]

Hello,

I am working in 64-bit Linux machine with the most recent version
of Ubuntu installed. After retrieving a sac binary file to make a plot,
I cannot close the plot whatsoever. Moreover, I cannot change the
directory from the one where I retrieved the binary file. Also,
when using 'write alpha append .txt' to create a companion
text file, does it save it in the same folder with the binary file?

Thank you for your help.
Raymond Chen