replace the text for any big file

In windows

powershell

PS C:\Users\Nanaji> $var=”ISAP_DATA”
PS C:\Users\Nanaji> $var1=”USERS”

PS C:\Users\Sobha> Get-Content C:\Users\Nanaji\Documents\isapdb\expt.txt | Foreach-Object {$_ -replace $var, $var1} >> C:\Users\Nanaji\Documents\isapdb\outputFile.txt

In Linux Using perl

C:\Users\Nanaji>perl -pi.orig -e “s/ISAP_DATA/users/g;” C:\Users\Nanaji\Documents\isapdb\expt.txt

C:\Users\Sobha\Documents\isapdb>perl -pi.orig -e “s/TABLESPACE \”ISAP_DATA\”//g;” C:\Users\Sobha\Documents\isapdb\expt.txt

perl -pi.orig -e "s/<textToReplace>/<textToReplaceWith>/g;" <fileName>

For a number of files matching such as *.html

for %x in (<filePattern>) do perl -pi.orig -e "s/<textToReplace>/<textToReplaceWith>/g;" %x