sed
Code:
# sed 's/.*<LTEXT>\(.*\)<\/LTEXT>.*/\1/g' file
aabcdfffvvbbxbcddjbv
aabcdfffvvbbxbcddjbv
aabcdfffvvbbxbcddjbv
aabcdfffvvbbxbcddjbv
[n]awk
Code:
# awk '{gsub(/.*<LTEXT>|<\/LTEXT>.*/,"");print}' file
aabcdfffvvbbxbcddjbv
aabcdfffvvbbxbcddjbv
aabcdfffvvbbxbcddjbv
aabcdfffvvbbxbcddjbv
aabcdfffvvbbxbcddjbv