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Full Discussion: Loops within loops
Top Forums Shell Programming and Scripting Loops within loops Post 68929 by bthomas on Friday 8th of April 2005 12:23:31 PM
Old 04-08-2005
Quote:
Originally Posted by Just Ice
i'm not sure about this one ...
Code:
sed ''$brange','$erange'!d' $hfile > $temp

you might want to check the size of $temp --- it's probably 0 bytes ... i'm guessing that you're killing the sed process in this loop when it hangs because $brange and $erange seem to be within single quotes and are unusable to sed ...
The $hfile is a hidden file that contains static values that I use a for global replace. I have to create anywhere from 1000 to 10000 block telephone numbers. the vales 0000 - 9999 never change. so I use the sed statement to pull the block out that I need brange = begin range erange = end range. Then I use a global replace on the static values. Lot faster than doing +1 especially if you have to create close to 21 mil records.
 

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script(1)							   User Commands							 script(1)

NAME
script - make record of a terminal session SYNOPSIS
script [-a] [filename] DESCRIPTION
The script utility makes a record of everything printed on your screen. The record is written to filename. If no file name is given, the record is saved in the file typescript. See WARNINGS. The script command forks and creates a sub-shell, according to the value of $SHELL, and records the text from this session. The script ends when the forked shell exits or when Control-d is typed. OPTIONS
The following option is supported: -a Appends the session record to filename, rather than overwriting it. NOTES
script places everything that appears on the screen in filename, including prompts. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |CSI |Enabled | +-----------------------------+-----------------------------+ SEE ALSO
attributes(5) WARNINGS
script can pose a security risk when used in directories that are writable by other users (for example, /tmp), especially when run by a privileged user, that is, root. Be sure that typescript is not a link before running script. SunOS 5.11 30 Jan 2004 script(1)
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