Shell Programming and Scripting

awk '!/^ /{if(f)exit; p=x} /System Information/{f=1} {p=p $0 ORS} END{if(f)print p}' file

awk '!/^ /{if(f)exit; p=x} $0~s{f=1} {p=p $0 ORS} END{if(f)print p}' s="System Information" file

awk '/^Handle/ {if(p ~ pat) print p; p=$0; next} {p = p "\n" $0} END {if(p ~ pat) print p}' pat="${2}" "${1}"

#!/usr/bin/env bash

# @(#) s1	Demonstrate "paragraph" extraction, dmidecode output, cgrep
# For cgrep source, see:
# http://sourceforge.net/projects/cgrep/

# Utility functions: print-as-echo, print-line-with-visual-space, debug.
# export PATH="/usr/local/bin:/usr/bin:/bin"
LC_ALL=C ; LANG=C ; export LC_ALL LANG
pe() { for _i;do printf "%s" "$_i";done; printf "\n"; }
pl() { pe;pe "-----" ;pe "$*"; }
db() { ( printf " db, ";for _i;do printf "%s" "$_i";done;printf "\n" ) >&2 ; }
db() { : ; }
C=$HOME/bin/context && [ -f $C ] && $C

FILE=${1-data1}
lines=$( wc -l < $FILE )

pl " Part of input data file $FILE, $lines total lines:"
head $FILE

pl " Expected output:"
cat expected-output.txt

pl " Results:"
cgrep -D +w "^Handle" -w "^Handle" +I2 "System Information" $FILE

exit 0

./s1

Environment: LC_ALL = C, LANG = C
(Versions displayed with local utility "version")
OS, ker|rel, machine: Linux, 2.6.26-2-amd64, x86_64
Distribution        : Debian 5.0.8 (lenny, workstation) 
bash GNU bash 3.2.39
cgrep ATT cgrep 8.15

-----
 Part of input data file data1, 63 total lines:
SMBIOS 2.4 present.
98 structures occupying 3681 bytes.
Table at 0x000E0010.
Handle 0x0000
        DMI type 0, 24 bytes.
        BIOS Information
                Vendor: Phoenix Technologies LTD
                Version: 6.00
                Release Date: 04/15/2011
                Address: 0xEA2E0

-----
 Expected output:
Handle 0x0001
        DMI type 1, 27 bytes.
        System Information
                Manufacturer: VMware, Inc.
                Product Name: VMware Virtual Platform
                Version: None
                Serial Number: VMware-50 2a 97 c6 3e 64 b4 f5-ec 9f 59 78 f3 5d                                                                                         13 6a
                UUID: 502A97C6-3E64-B4F5-EC9F-5978F35D136A
                Wake-up Type: Power Switch

-----
 Results:
Handle 0x0001
        DMI type 1, 27 bytes.
        System Information
                Manufacturer: VMware, Inc.
                Product Name: VMware Virtual Platform
                Version: None
                Serial Number: VMware-50 2a 97 c6 3e 64 b4 f5-ec 9f 59 78 f3 5d                                                                                         13 6a
                UUID: 502A97C6-3E64-B4F5-EC9F-5978F35D136A
                Wake-up Type: Power Switch