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Top Forums Shell Programming and Scripting About reture with string and keep other "echo" info Post 302745355 by yanglei_fage on Monday 17th of December 2012 07:09:00 AM
Old 12-17-2012
About reture with string and keep other "echo" info

I use below code to get ip, and I want to echo something in the function, but the $IP will be all the value from "echo" I just want to get the real ip, and keep the echo info, any help

Code:
#!/bin/bash
get_ip()
{
    ip=$(grep -B2 "00:01:02:03:04:05" ip_tmp.log |head -1 |awk '{print $2}')
    echo "............."
    echo "Guest OS ip is $ip" 
    echo "............."
     #rm ip_tmp.log
    echo $ip
}
IP=$(get_ip)
echo "IP is $IP"


Last edited by yanglei_fage; 12-17-2012 at 08:56 AM..
 

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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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