How to implement grep in bash scripting? [duplicate]

问题

This question already has answers here:

How to perform grep operation on all files in a directory? (5 answers)

Closed 18 days ago.

I am working on to search a string on files using grep in a directory(in for loop)

for file in .* *; do 
    if [[ -f "$file" && `grep -r "$pattern" "$file"` ]]; then
    path=`pwd`/"$file"
    echo "$path"
    fi
done

回答1:

Avoid the for loop and use something like

grep -l "${pattern}" ${PWD}/.* ${PWD}/*

or better

find ${PWD} -type f -exec grep -l "${pattern}" {} +

回答2:

Use find command . To search in current folder

find . -exec grep "$pattern" {} \; -print'

To search in specific folder

find /home/hduser  -exec grep "$pattern" {} \; -print'

来源：https://stackoverflow.com/questions/38677398/how-to-implement-grep-in-bash-scripting