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Full Discussion: sed command
Top Forums Shell Programming and Scripting sed command Post 302202693 by era on Thursday 5th of June 2008 11:42:38 AM
Old 06-05-2008
Code:
set -- `echo "$string" | sed -e 's/[^0-9][^0-9]*/ /g'`
echo First value is $1
echo Second value is $2

The set -- `command` idiom is rather obscure, but it's nevertheless a standard technique for splitting whitespace-separated tokens into the shell's positional variables. After the set, the first token in the output from command will be in $1, the second in $2, etc, and $# will tell you how many there were, just like when a script is invoked with command-line parameters.

If this is too weird for you then try the following.

Code:
variable1=`echo "$string" | sed -e 's/^[^0-9]*\([0-9][0-9]*\).*/\1/'`
variable2=`echo "$string" | sed -e 's/.*\([0-9][0-9]*\)[^0-9]*$/\1/'`

The first will grab the first number in the string, and the second, the last. If there are more, they will be lost.
 

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echo(1B)					     SunOS/BSD Compatibility Package Commands						  echo(1B)

NAME
echo - echo arguments to standard output SYNOPSIS
/usr/ucb/echo [-n] [argument] DESCRIPTION
echo writes its arguments, separated by BLANKs and terminated by a NEWLINE, to the standard output. echo is useful for producing diagnostics in command files and for sending known data into a pipe, and for displaying the contents of envi- ronment variables. For example, you can use echo to determine how many subdirectories below the root directory (/) is your current directory, as follows: o echo your current-working-directory's full pathname o pipe the output through tr to translate the path's embedded slash-characters into space-characters o pipe that output through wc -w for a count of the names in your path. example% /usr/bin/echo "echo $PWD | tr '/' ' ' | wc -w" See tr(1) and wc(1) for their functionality. The shells csh(1), ksh(1), and sh(1), each have an echo built-in command, which, by default, will have precedence, and will be invoked if the user calls echo without a full pathname. /usr/ucb/echo and csh's echo() have an -n option, but do not understand back-slashed escape characters. sh's echo(), ksh's echo(), and /usr/bin/echo, on the other hand, understand the black-slashed escape characters, and ksh's echo() also understands a as the audible bell character; however, these commands do not have an -n option. OPTIONS
-n Do not add the NEWLINE to the output. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWscpu | +-----------------------------+-----------------------------+ SEE ALSO
csh(1), echo(1), ksh(1), sh(1), tr(1), wc(1), attributes(5) NOTES
The -n option is a transition aid for BSD applications, and may not be supported in future releases. SunOS 5.10 3 Aug 1994 echo(1B)
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