linux多文件查找

今天公司大神给了一个脚本来查找文件，记录下来:

#!/usr/bin/env bash  usage() { 
            echo "[Usage]"     echo ""     echo "find-in-file [4mregex-for-file-name[0m [4mregex-in-file[0m [4m[options][0m"     echo "Params: [4mregex-for-file-name[0m is used to find the file to search in."     echo " [4mregex-in-file[0m is transfered directly to grep, can be a word or regex."     echo " [4moptions[0m can be:"     echo " -i ignore-case while using grep to filter content."     echo " -I ignore-case while using find command to search file."     echo " -f print full path-name instead of relative name."     echo " -d instead of print result, remove all the found files."     echo "" }  print_fun() { 
            usage      echo "[Function]"     echo ""     echo "1. find files contains certain content;"     echo "2. show the line number and context of the content in found files."     echo "3. or removed the found files."     echo ""     echo "This script is wrapped-find-grep, the executed command actually is:"     echo " find . -type f -regex [4mregex-for-file-name[0m -print0 | xargs -0 grep -Hn --color [4mregex-in-file[0m"     echo "In default, the find command and grep command is case-sensitive."     echo "In other word, [4mregex-for-file-name[0m == .*exam.* will not match file Exam."     echo "Use -I option to change this. The -i option has the same effect on command grep."     echo "That is, the [4moptions[0m will change the command a little:"     echo " with -i option, the grep will has a -i option."     echo " with -I option, the find command will use -iregex instead of -regex."     echo " with -f option, the path of find is not '.' but the result of executing command 'pwd',"     echo " thus, the result is printed using absolute path name."     echo " with -d option, even the -f option is also provided, it has no effect."     echo " in such case, th found files will be removed, but no content will be printed."
    echo ""

    echo "[Additions]"
    echo ""
    echo "The search root is always current path. All files whose name matches"
    echo "the param [4mregex-for-file-name[0m will be searched line by line."
    echo "And only lines contains [4mregex-in-file[0m will be printed to standard output."
    echo "Actually, the output is filtered by grep and printed in a pretty format."
    echo ""
    echo "If -d option is provided, no output will shown, ths found files will"
    echo "be removed directly. So, user can use this script without -d option first,"
    echo "and check the output. If all the founded files is correct, use this script"
    echo "again with -d option to remove all the found files."
    echo ""
}

if [ -z "$1" ] || [ -z "$2" ]; then
    print_fun
    exit 1
fi

if [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
    print_fun
    exit 0
fi

path="."
del_flag=""
pos=3
op="${ 
        !pos}"
#find_op="-regex"
find_op="-regex"
while [ ! -z "${op}" ]
do
    case "${op}" in
        -i)
            grep_op="-i"
            ;;
        -I)
            find_op="-iregex"
            ;;
        -f)
            path=`pwd`
            ;;
        -d)
            del_flag="true"
            ;;
        *)
            echo -e "Error. Unrecgnized value of the 3th param: $3\n"
            usage
            exit 2
            ;;
    esac
    pos=$[ ${pos} + 1 ]
    op="${ 
        !pos}"
done

fname_reg="$1"
if [[ ${fname_reg} != .** ]]; then
    fname_reg=".*${fname_reg}"
fi

if [ -z "$del_flag" ]; then
    find "${path}" -type f ${find_op} "${fname_reg}" -print0 | xargs -0 grep -Hn ${grep_op} --color "$2"
else
    find "${path}" -type f ${find_op} "${fname_reg}" -print0 | xargs -0 grep -Hn ${grep_op} --color "$2" | awk -F: ' BEGIN{ ORS="\0" } { if(null == arr[$1]){ arr[$1] = "true" print $1 } } ' | xargs -0 rm -f
    echo "Remove success."
fi

exit 0

语法：

./find-in-file "。*" "[查找内容]"

例如：查找当前文件夹下所文件，搜索：“2”

./find-in-file ".*" "2"

准备了3个文件：1.log、2.log、3.log

-> % cat 1.log
1

-> % cat 2.log
2

-> % cat 3.log
1
2

搜索结果：

-> % find-in-file ".*" "2"
./2.log:1:2
./3.log:2:2

结果格式为：[文件路径] [行数] [grep到的内容]