SHELL

bash find file by name

find . -name 'mystring*'

bash find file in directory

$ ls -R | grep -i "pattern"

bash find file

# syntax 
# find *</path/to/dir> '(' *<filter-1> -o *<filter-2> ')'

# example 
find . '(' -name '*ERR5312209.zip' -o -name '*ERR5312209.TXT' ')'