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I move (mv) files to an outside directory (SAFE_DIR_FOR_DEL) -PLEASE CREATE THIS directory BEFORE EXECUTING the loops- in order to check them later for safety, then you can delete the whole directory. Also, this solution can find multiple patterns per file.

str_rp = You put here whatever you would like to find. Note that some characters may need to be escaped eg. !, "", (), etc (see grep/regex help). You may change the files that you like to search the grep string eg. *.html, *.txt or whatever.

Note that if any pattern of 2 are found, the file is moved into the SAFE_DIR_FOR_DEL. If you like to move files in two different directories, you can easily change the name of the folder in 2nd pattern, but first you must have create it.

CAUTION: before executing it, you try it in some files in an temporary folder with temporary files, with temporary safe dir structure.

i=1; for fl in *.html; do 

  str_rp="1st pattern"; 
  if n=$(grep  "$str_rp"  "$fl"); then
    echo "OK1-" "$fl"
    mv -- "$fl" ../SAFE_DIR_FOR_DEL/;
  else
    echo "NONE 1st"
  fi

  # if file moved from 1st grep, then 2nd grep may result normally an error "No such file or directory".
  str_rp="2nd pattern";
  if n=$(grep "$str_rp"  "$fl"); then
    echo "OK2-" "$fl"
    mv -- "$fl" ../SAFE_DIR_FOR_DEL/;
  else
    echo "NONE 2nd"
  fi

  echo $i;  let "i+=1";
done;

Or, more concisely:

for pattern in "1st pattern" "2nd pattern"; do
  for file in *.html; do
     if grep -q "$pattern" "$file"; then
        mv -- "$file" ../SAFE_DIR_FOR_DEL/
     fi
  done
done

I move (mv) files to an outside directory (SAFE_DIR_FOR_DEL) -PLEASE CREATE THIS directory BEFORE EXECUTING the loops- in order to check them later for safety, then you can delete the whole directory. Also, this solution can find multiple patterns per file.

str_rp = You put here whatever you would like to find. Note that some characters may need to be escaped eg. !, "", (), etc (see grep/regex help). You may change the files that you like to search the grep string eg. *.html, *.txt or whatever.

Note that if any pattern of 2 are found, the file is moved into the SAFE_DIR_FOR_DEL. If you like to move files in two different directories, you can easily change the name of the folder in 2nd pattern, but first you must have create it.

CAUTION: before executing it, you try it in some files in an temporary folder with temporary files, with temporary safe dir structure.

i=1; for fl in *.html; do 

  str_rp="1st pattern"; 
  if n=$(grep  "$str_rp"  "$fl"); then
    echo "OK1-" "$fl"
    mv -- "$fl" ../SAFE_DIR_FOR_DEL/;
  else
    echo "NONE 1st"
  fi

  # if file moved from 1st grep, then 2nd grep may result normally an error "No such file or directory".
  str_rp="2nd pattern";
  if n=$(grep "$str_rp"  "$fl"); then
    echo "OK2-" "$fl"
    mv -- "$fl" ../SAFE_DIR_FOR_DEL/;
  else
    echo "NONE 2nd"
  fi

  echo $i;  let "i+=1";
done;

Or, more concisely:

for pattern in "1st pattern" "2nd pattern"; do
  for file in *.html; do
     if grep -q -e "$pattern" -- "$file"; then
        mv -- "$file" ../SAFE_DIR_FOR_DEL/
     fi
  done
done

or

for file in *.html; do
   if grep -q -e "1st pattern" -e "2nd pattern" -- "$file"; then
      mv -- "$file" ../SAFE_DIR_FOR_DEL/
   fi
done

if the files of a directory are many eg. 300thousands then find / grep without loop will fail.

I move (mv) files to an outside directory (SAFE_DIR_FOR_DEL) -PLEASE CREATE THIS directory BEFORE EXECUTING the loops- in order to check them later for safety, then you can delete the whole directory. Also, this solution can find multiple patterns per file.

str_rp = You put here whatever you would like to find. Note that some characters may need to be escaped eg. !, "", (), etc (see grep/regex help). You may change the files that you like to search the grep string eg. *.html, *.txt or whatever.

Note that if any pattern of 2 are found, the file is moved into the SAFE_DIR_FOR_DEL. If you like to move files in two different directories, you can easily change the name of the folder in 2nd pattern, but first you must have create it.

CAUTION: before executing it, you try it in some files in an temporary folder with temporary files, with temporary safe dir structure.

i=1; for fl in *.html; do 

  str_rp="1st pattern"; 
  if n=$(grep  "$str_rp"  "$fl"); then
    echo "OK1-" "$fl"
    mv -- "$fl" ../SAFE_DIR_FOR_DEL/;
  else
    echo "NONE 1st"
  fi

  # if file moved from 1st grep, then 2nd grep may result normally an error "No such file or directory".
  str_rp="2nd pattern";
  if n=$(grep  "$str_rp"  "$fl"); then
    echo "OK2-" "$fl"
    mv -- "$fl" ../SAFE_DIR_FOR_DEL/;
  else
    echo "NONE 2nd"
  fi

  echo $i;  let "i+=1";
done;

I move (mv) files to an outside directory (SAFE_DIR_FOR_DEL) -PLEASE CREATE THIS directory BEFORE EXECUTING the loops- in order to check them later for safety, then you can delete the whole directory. Also, this solution can find multiple patterns per file.

str_rp = You put here whatever you would like to find. Note that some characters may need to be escaped eg. !, "", (), etc (see grep/regex help). You may change the files that you like to search the grep string eg. *.html, *.txt or whatever.

Note that if any pattern of 2 are found, the file is moved into the SAFE_DIR_FOR_DEL. If you like to move files in two different directories, you can easily change the name of the folder in 2nd pattern, but first you must have create it.

CAUTION: before executing it, you try it in some files in an temporary folder with temporary files, with temporary safe dir structure.

i=1; for fl in *.html; do 

  str_rp="1st pattern"; 
  if n=$(grep  "$str_rp"  "$fl"); then
    echo "OK1-" "$fl"
    mv -- "$fl" ../SAFE_DIR_FOR_DEL/;
  else
    echo "NONE 1st"
  fi

  # if file moved from 1st grep, then 2nd grep may result normally an error "No such file or directory".
  str_rp="2nd pattern";
  if n=$(grep "$str_rp"  "$fl"); then
    echo "OK2-" "$fl"
    mv -- "$fl" ../SAFE_DIR_FOR_DEL/;
  else
    echo "NONE 2nd"
  fi

  echo $i;  let "i+=1";
done;

Or, more concisely:

for pattern in "1st pattern" "2nd pattern"; do
  for file in *.html; do
     if grep -q "$pattern" "$file"; then
        mv -- "$file" ../SAFE_DIR_FOR_DEL/
     fi
  done
done

if the files of a directory are many eg. 300thousands then find / grep without loop will fail.

I move (mv) files to an outside directory (SAFE_DIR_FOR_DEL) -PLEASE CREATE THIS directory BEFORE EXECUTING the loops- in order to check them later for safety, then you can delete the whole directory. Also, this solution can find multiple patterns per file.

str_rp = You put here whatever you would like to find. Note that some characters may need to be escaped eg. !, "", (), etc (see grep/regex help). You may change the files that you like to search the grep string eg. *.html, *.txt or whatever.

Note that if any pattern of 2 are found, the file is moved into the SAFE_DIR_FOR_DEL. If you like to move files in two different directories, you can easily change the name of the folder in 2nd pattern, but first you must have create it.

CAUTION: before executing it, you try it in some files in an temporary folder with temporary files, with temporary safe dir structure.

i=1; for fl in *.html; do 

str_rp="1st pattern"; 
if n=$(grep  "$str_rp"  "$fl"); then
echo "OK1-" "$fl"
mv -- "$fl" ../SAFE_DIR_FOR_DEL/;
else
echo "NONE 1st"
fi

# if file moved from 1st grep, then 2nd grep may result normally an error "No such file or directory".
str_rp="2nd pattern";
if n=$(grep  "$str_rp"  "$fl"); then
echo "OK2-" "$fl"
mv -- "$fl" ../SAFE_DIR_FOR_DEL/;
else
echo "NONE 2nd"
fi

echo $i;  let "i+=1";
done;

if the files of a directory are many eg. 300thousands then find / grep without loop will fail.

I move (mv) files to an outside directory (SAFE_DIR_FOR_DEL) -PLEASE CREATE THIS directory BEFORE EXECUTING the loops- in order to check them later for safety, then you can delete the whole directory. Also, this solution can find multiple patterns per file.

str_rp = You put here whatever you would like to find. Note that some characters may need to be escaped eg. !, "", (), etc (see grep/regex help). You may change the files that you like to search the grep string eg. *.html, *.txt or whatever.

Note that if any pattern of 2 are found, the file is moved into the SAFE_DIR_FOR_DEL. If you like to move files in two different directories, you can easily change the name of the folder in 2nd pattern, but first you must have create it.

CAUTION: before executing it, you try it in some files in an temporary folder with temporary files, with temporary safe dir structure.

i=1; for fl in *.html; do 

  str_rp="1st pattern"; 
  if n=$(grep  "$str_rp"  "$fl"); then
    echo "OK1-" "$fl"
    mv -- "$fl" ../SAFE_DIR_FOR_DEL/;
  else
    echo "NONE 1st"
  fi

  # if file moved from 1st grep, then 2nd grep may result normally an error "No such file or directory".
  str_rp="2nd pattern";
  if n=$(grep  "$str_rp"  "$fl"); then
    echo "OK2-" "$fl"
    mv -- "$fl" ../SAFE_DIR_FOR_DEL/;
  else
    echo "NONE 2nd"
  fi

  echo $i;  let "i+=1";
done;