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[SOLVED] Piping Problem

 
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Top Forums UNIX for Dummies Questions & Answers [SOLVED] Piping Problem
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Old 10-22-2011
[SOLVED] Piping Problem
Hey,
I want to create a new file (devices) with the 39th and the 40th character of the line wich is in the array line and in the file drivers.
But unfortunately my try doesn't work:
Code:
sed -n '$line[0]p' drivers | cut -c 39-40 | echo >>devices

Perhaps one of you can help me. Thank you!

emoly

---------- Post updated at 01:24 PM ---------- Previous update was at 12:02 PM ----------

fixed it by myself

Code:
 echo $(sed -n '$line[0]p' drivers | cut -c 39-40) >>devices

Last edited by radoulov; 10-22-2011 at 05:35 PM.. Reason: Marked as solved.
 
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LEARN ABOUT MINIX

makedev

MAKEDEV(8)						      System Manager's Manual							MAKEDEV(8)

NAME

       MAKEDEV, DESCRIBE - make/describe device files

SYNOPSIS

       MAKEDEV [-n] key ...
       DESCRIBE [device] ...

DESCRIPTION

       MAKEDEV may be used to create the device files normally found in the /dev directory.  The key arguments are simply the names of the devices
       you want.  MAKEDEV knows about all supported devices and will create them in the current directory with the proper  owner  and  mode.   For
       many  devices MAKEDEV will not only create the device you want, but also the devices related to it that you will probably want too.  Naming
       one floppy device will create all floppy devices for the same drive for instance.

       Call MAKEDEV without arguments to see a list of keys that it understands.  Then use the -n flag to make the script  echo  the  commands	it
       will execute the next time when you call it without that flag.

       The special key std must be given alone to MAKEDEV.  This key will create all standard devices.

       The command DESCRIBE will give you a one-line description of a given device.  It will by default list all devices in /dev.

SEE ALSO

       mknod(8).

BUGS

       MAKEDEV's eagerness to create devices may cause many "File exists" errors from mknod.

AUTHOR

       Kees J. Bot (kjb@cs.vu.nl)

																	MAKEDEV(8)