Shell Programming and Scripting

######
#below mapped texts must be replaced
######
SEARCH_N_REPLACE={
abc = test1
efg = test2
gfdg = test3
}
######
#directory may contain pdf/txt/jpg files but it should only consider the #mentioned files here {html,htm,css,js}. 
#######

SEARCH_IN_FILES= {html,htm,css,js}


######

./testing/file.pdf
./sample.jpg
./example.html
./testcondition.css

foreach line in sync.log #line means each file path 
foreach ext SEARCH_IN_FILES #should search for extension type of file
if line.ext is ext #if matches the extension
foreach term SEARCH_N_REPLACE
searchterm=parse:SEARCH_N_REPLACE
replaceterm=parse:SEARCH_N_REPLACE
perl -pie 's/searchterm/replaceterm'
perl -pie 's/searchterm/replaceterm' line

#!/bin/ksh
cat sync.log | while read line
do
F_EXT=${line##*.}
if [[ ${F_EXT} == "html" || ${F_EXT} == "htm" || ${F_EXT} == "css" || ${F_EXT} == "js" ]]; then
# sed -i 's/abc/test1/g;efg/test2/g;gfdg/test3/g' ${line}
perl -i -pe 's/abc/test1/g;' -pe 's/efg/test2/g;' -pe 's/gfdg/test3/g;' ${line}
fi
done

$ cat log
./testing/file.pdf
./sample.jpg
./example.html
./testcondition.css

$ echo 'gfdg' >example.html

$ cat example.html
gfdg

$ cat test
#!/bin/bash

SEARCH_IN_FILES="html htm css js"
declare -A MYMAP=( [abc]=test1 [efg]=test2 [gfdg]=test3 )

while read line;do

	if grep -w "${line##*.}" <<<$SEARCH_IN_FILES >/dev/null; then
		
		for i in "${!MYMAP[@]}";do
  			 sed -i 's/'"$i"'/'"${MYMAP[$i]}"'/g' $line
		done
	fi

done <"log"

$ bash test

$ cat example.html
test3