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processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) Pentium(R) 4 CPU 2.80GHz
stepping : 8
cpu MHz : 2793.403
cache size : 512 KB
fdiv_bug : no
hlt_bug :...

I don't know a specific command, but this one liner works fine in sh, bash, and tcsh (a bunch of other shells too):


( echo "Line to add" ; cat targetfile ) > tempfile ; cat tempfile > targetfile...

What language are you programming in?

I prefer VI. I port a lot of Visual C/C++, and other M$ files on to my linux box, and it helps me get rid of the CTRL-M an other odd characters.

Vi's also useful if you don't have access a mouse.

Yes this is right, since whenever user1 creates a file the WORLD permissions are read only (r--) anyone has access to read USER1's files regardless of the group. (For example, members of group Z can...

Shell programming in sh.

1) Every shell file gegins with #!/[path to shell]/[name of shell]! to use bash, for example you would begin your shell script with


#!/bin/sh


to use tcsh you...

Okay, visit:

http://www.ecst.csuchico.edu/~beej/guide/ipc/

This is a comprehensive guide to interprocess communication.


Today's lesson is on piping. You have process A, and process B,...

It sounds like you're trying to use a shell script to read from stdin (this is what you must do to capture "this is some text" from the echo command.)

Try inserting this line into your shell...

Someone could easily misuse the directory permissions. A better solution would be change the picture directory permissions to 722. This allows users to add pictures to the picture directory while...