search for code in a folder

grep --include=*.{c,h,cc,cpp,hpp} -rnw . -e "OrtKernelInfo" > log.txt

scripts for find sth

You can put these scripts with shortname under your /home/foo/bin

find a file with name (regex)

#!/bin/bash
if [ "$#" -ne 2 ] || ! [ -d "$1" ]; then
  echo "Usage: $0 dir filename" >&2
  exit 1
fi
find $1 -name $2

find a file with content

#!/bin/bash
if [ "$#" -ne 3 ] || ! [ -d "$1" ]; then
  echo "Usage: $0 dir filename pattern" >&2
  exit 1
fi
find $1 -name $2 -print | xargs grep $3

This will delete all the files in a directory (and below) that are size zero.

find /tmp -size 0 -print -delete