To replace txt https://hostname.domain.com/3dpassport at many files at same folder to https://bbbbb.domain.com/3dpassport
sed -i "s/https:\/\/hostname.domain.com/https:\/\/bbbbb.domain.com/g" `grep -l https://hostname.domain.com *`command explanation:
grep -l will only output the file name.
“ will execute the command and use the result to replace content.
sed -i will directly edit the file.
s/regexp/replacement/
replace the regexp with replacement string.