User`s guide

116 Cray T3E User’s Guide
Appendix C
Metacomputer Environment
• help topic (CSC help system)
•
ls (list directory)
• less (print a file to the screen)
• cp (copy a file)
• rm (delete a file)
• mv (move or rename a file)
• cd (change the current directory)
• pwd (print name of the current directory)
• mkdir (create a directory)
• rmdir (delete a directory)
• exit (quit the session)
• passwd (change password)
Unix commands
• less file (print a file to the screen)
• ls -la | less (page the output of a command)
• return (next line)
• space bar (next screen)
• b (previous screen)
• h (list the commands of less)
• q (quits the less program)
Paging with less
• emacs file (start the emacs editor)
• Notation Ctrl-c means: “hold down the
Control key and press the c key”
• Moving: cursor keys and Ctrl-f (forward),
Ctrl-b (back), Ctrl-n (next line),
Ctrl-p (previous line)
• Ctrl-x Ctrl-c (quit and save)
• Ctrl-x Ctrl-s (save)
• Ctrl-g (interrupt an emacs command)
• Ctrl-h Ctrl-h (Emacs help system)
Emacs editor
lynx, mosaic, netscape (hypertext
information system)
•
•
usage program (quick help for programs)
• man program (manual pages)
• msgs (system messages)
Help commands
• ftp computer (file transfer program,
help lists commands, quit ends the session)
• Example with ftp:
ftp cypress.csc.fi (open session)
bin (binary transfer)
dir (directory listing in Cypress)
put file1 (put the file to Cypress)
get file2 (get the file from Cypress)
quit (end of session)
• scp computer1:file1 computer2:file2
(copy files between computers).
• rcp computer1:file1 computer2:file2
(copy files between computers).
File transfer
• saldo (show CPU quota)
• quota -v (disk quota)
• ps (process status)
• top (continuous process status)
• uptime (show the load of the computer)
• who (list logged-in users)
• finger user@computer (gives information
about a user)
• df -k (disk status in kilobytes)
• du -k (disk space used by a directory)
• qsub, nqeq, nqestatus (submit and get status
of batch jobs)
System status
• fsput file (put the file to the file server)
• fsget file (get the file from the file server)
• fsls (list the files in the file server)
• man fsput (manual page for the command)
Fileserver
© Center for Scientific Computing 1998
ssh computer (open a new secure session)
• telnet computer (open a new session)
•
• rlogin computer (open a new session)
• Modem lines (1200–28800 bps):
[phone], [phone]
•
•
Networking