10-10-2009
whoops looks like i made a mistake on my example output.. just drop those ip's down one level.
scottn thanks for the quick response.. only one problem.. i think yours assumes the server prefix will begin with the same and it doesn't in my case. Sorry for not mentioning that earlier.
I think my real question is if i run one command and output that to a file, what could i add to the second command to redirect the output to the file in the manner that i need. Whatever it is, it should not care about what data is already in the file but that when it writes to it, it does so from the first line on down adding a space then the data. So everything is presumed correct based on the order for which the information was gathered to begin with.
So lets say i..
$run command a > file ; cat file
fooa
foob
fooc
$run command b (some command here to take output like so below) ; cat file
fooa foo1
foob foo2
fooc foo3
Last edited by phpfreak; 10-10-2009 at 07:28 PM..
Reason: addition
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cat(1) General Commands Manual cat(1)
Name
cat - concatenate and print data
Syntax
cat [ -b ] [ -e ] [ -n ] [ -s ] [ -t ] [ -u ] [ -v ] file...
Description
The command reads each file in sequence and displays it on the standard output. Therefore, to display the file on the standard output you
type:
cat file
To concatenate two files and place the result on the third you type:
cat file1 file2 > file3
To concatenate two files and append them to a third you type:
cat file1 file2 >> file3
If no input file is given, or if a minus sign (-) is encountered as an argument, reads from the standard input file. Output is buffered in
1024-byte blocks unless the standard output is a terminal, in which case it is line buffered. The utility supports the processing of 8-bit
characters.
Options
-b Ignores blank lines and precedes each output line with its line number.
-e Displays a dollar sign ($) at the end of each output line.
-n Precedes all output lines (including blank lines) with line numbers.
-s Squeezes adjacent blank lines from output and single spaces output.
-t Displays non-printing characters (including tabs) in output. In addition to those representations used with the -v option, all tab
characters are displayed as ^I.
-u Unbuffers output.
-v Displays non-printing characters (excluding tabs and newline) as the ^x. If the character is in the range octal 0177 to octal 0241,
it is displayed as M-x. The delete character (octal 0177) displays as ^?. For example, is displayed as ^X.
See Also
cp(1), ex(1), more(1), pr(1), tail(1)
cat(1)