UNIX for Dummies Questions & Answers

%s= ==g

tr -d '\040' < originalfile > outputfile

 echo '     unix   ' | sed 's/^[ ]*//g;s/[ ]*$//g'

echo '    unix    ' | awk '{print$1}'
echo '    unix    ' | read NEWVALUE
NEWVALUE=$(echo '    unix    ')

#!/bin/ksh

str='  1 2   3  5  '

function trim {
   
   echo "${1}" | /usr/xpg4/bin/awk '{gsub("^[[:space:]]+|[[:space:]]+$", "", $0); printf("%s\n", $0)}'
}

echo "[${str}] -> [$(trim "${str}")]"

cat file | while read s
do
     echo $s
done