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Top Forums Shell Programming and Scripting Quick Question concerning Reading and Writing Post 302572378 by astropi on Wednesday 9th of November 2011 08:48:26 PM
Old 11-09-2011
Quick Question concerning Reading and Writing

First off, this is not homework nor for any class.

I have a file (column) of data such as:

12.56
2.78
0.54
22.7
... etc.

(call the file "num") I want to read in each line, then check to see whether it's greater than or equal to a value, say "1". If it is, save it in one file, if it's not, save it in another file. So in other words, I'll end up with two files, each a column of data. Below is what I tried:

Code:
read a < num
if [ "${a}" -ge 1 ]; then 
    ${a} >> OK.txt
else
    ${a} >> BAD.txt
fi

It appears to work for the very first line, but then stops. I'm sure there's a simple way to get what I want, but I don't know how. Help, would certainly be appreciated! Thanks.
 

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BEAV(1) 						      General Commands Manual							   BEAV(1)

NAME
beav - binary file editor and viewer SYNOPSIS
beav [file...] DESCRIPTION
This is a brief description of the minimal set of commands that are necessary to start using beav effectively. For more information, review the file /usr/share/doc/beav/beav140.txt.gz. The file-visit command, Ctl-X Ctl-V, can be used to read a file in for editing. The file can also be read in from the command line; beav <edit_file>. Data is displayed in one or more windows. These commands can be used to navigate around the windows. move-back-char Ctl-B moves left move-back-line Ctl-P moves up move-forw-char Ctl-F moves right move-forw-line Ctl-N moves down window-delete Ctl-X 0 delete window window-expand Ctl-X 1 expand window The move-to-byte command, Ctl-X G, will prompt you for a byte position to move to. These commands will insert a zero byte at the cursor position or delete the byte at that position. insert-unit Ctl-X I delete-forw-unit Esc D The file-save command, Ctl-X Ctl-S, will save the data to the file if a change has been made. The help command, Esc ?, will display a list of all commands and their current key bindings. The abort-cmd command, Ctl-G, will abort any command that is in operation. The quit-no-save command, Ctl-X Ctl-C, will exit beav. If there is any data that has not been saved you will be warned. FILES
/usr/share/doc/beav/beav140.txt.gz BEAV(1)
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