Shell Programming and Scripting

Policy Name:       Policy1
Active:            yes
Policy Name:       Policy2
Active:            yes
Policy Name:       Policy3
Active:            no
Policy Name:       Policy4
Active:            yes
Policy Name:       Policy5
Active:            no

Policy1 yes
Policy2 yes
Policy3 no
Policy4 yes
Policy5 no

awk 'NR%2 {keep=$2; next}
       !NR%2 {print keep, $2} ' inputfile > outputfile

while read a b
do
   read c d
   echo $b $d
done <inputfile

#!/usr/bin/env bash

# @(#) s1	Demonstrate combine lines fro specific column (field).

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 sed cut paste

FILE=${1-data1}
pl " Input data file $FILE:"
cat -A $FILE

pl " Results of sed, cut, paste:"
sed 's/   */\t/g' $FILE |
cut -f2 |
paste - -

pl " Same thing, compressed with \"Process Substitution\":"
cut -f2 <( sed 's/   */\t/g' $FILE ) |
paste - -

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 GNU/Linux 5.0.8 (lenny) 
bash GNU bash 3.2.39
sed GNU sed version 4.1.5
cut (GNU coreutils) 6.10
paste (GNU coreutils) 6.10

-----
 Input data file data1:
Policy Name:       Policy1$
Active:            yes$
Policy Name:       Policy2$
Active:            yes$
Policy Name:       Policy3$
Active:            no$
Policy Name:       Policy4$
Active:            yes$
Policy Name:       Policy5$
Active:            no$

-----
 Results of sed, cut, paste:
Policy1	yes
Policy2	yes
Policy3	no
Policy4	yes
Policy5	no

-----
 Same thing, compressed with "Process Substitution":
Policy1	yes
Policy2	yes
Policy3	no
Policy4	yes
Policy5	no

awk '{ORS=(ORS==RS)?FS:RS; print $NF}' infile

cat filename|cut -d':' -f2|tr -d ' '|paste -s -d" \n" -

perl -ne '/Policy Name:\s*(\S+)/;$pol=$1;print $pol." ".$1."\n" if /Active:\s*(\S+)/' infile