VNC over SSH is one of the secure ways to remotely access computer desktop.
At the server side (the remote computer which you want to log to):
vncserver :64 -geometry 1024x768 -depth 16 -name user
At the viewer side (the local computer you are using now):
vncviewer -via 192.168.1.2 localhost:64
192.168.1.2 is the server' IP.
After you finish, kill the process at server:
vncserver -kill :64
Wednesday, May 2, 2007
Tuesday, May 1, 2007
ssh -X command
Log in a computer as
ssh -X user@sever
One can use some command to get GUI work. Such as:
firefox & (which can view files by enter file:///home/user)
nautilus &
konqueor &
ssh -X user@sever
One can use some command to get GUI work. Such as:
firefox & (which can view files by enter file:///home/user)
nautilus &
konqueor &
Gnuplot (plot part of data file)
A good reference website: http://t16web.lanl.gov/Kawano/gnuplot/datafile2-e.html
To specify a range of the data to be plotted, use the every option in the plot command. To skip every two lines, say plot "test.dat" every 2
.When the data file contains several data blocks those are separated by a single blank line, you can skip the data block by the every option. To skip every two block, try plot "test.dat" every :2
.every I:J:K:L:M:N |
| ||||||||||||
every 2 | plot every 2 line | ||||||||||||
every ::3 | skip the first 3 lines | ||||||||||||
every ::3::5 | plot from the 4-th to 6-th lines | ||||||||||||
every ::0::0 | plot the first line only | ||||||||||||
every 2::::6 | plot the 1,3,5,7-th lines | ||||||||||||
every :2 | plot every 2 data block | ||||||||||||
every :::5::8 | plot from 5-th to 8-th data blocks |
Alternatively (if you are on the UNIX-like system), a part of your data file can be plotted by using the unix commands, "head" and "tail".
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