#! /bin/bash
# 宏定义或字符串变量查找
# link：www.jbxue.com
# date：2013/2/27
Usage()  
{  
  echo "Usage: ${0##*/} [option] [path] search-content"  
  echo "  -S,--string           search string"  
  echo "  -m,--macro            search macro define"  
  echo "  -t,--typedef          search typedef statement"  
  echo "  -c,--class            search class declare"  
  echo "  -s,--struct           search class declare"  
  echo "  -e,--extended-regexp  support grep extended regular expression"  
  echo "  -i,--ignore-case      ignore search-content case"  
  echo "  -h,--help             display help information"  
  echo "[Note]: If you don't specify path, default searching from current directory."  
}  
      
    if [ $# -eq 0 ]; then  
      Usage  
      exit 1  
    fi  
      
    while [ $# -gt 0 ]; do  
        case $1 in  
        -*)  
            case $1 in  
            -S|--string) # this is the default option if you don't specify any option  
                SEARCH_TYPE="string";;  
            -m|--macro)  
                SEARCH_TYPE="macro";;  
            -t|--typedef)  
                SEARCH_TYPE="typedef";;  
            -c|--class)  
                SEARCH_TYPE="class";;  
            -s|--struct)  
                SEARCH_TYPE="struct";;  
            -E|--extended-regexp)  
                GREP_EXT_REG_OPTION="-E";;  
            -i|--ignore-case)  
                GREP_IGNORE_CASE_OPTION="-i";;  
            -h|--help)  
                Usage  
                exit 0;;  
            *)  
                echo "Invalid usage: unknown option $1!"  
                exit 1;;  
            esac ;;  
        *)  
            if [ -d "$1" ]; then  
                if [ -z "$SEARCH_PATH" ]; then  
                    SEARCH_PATH="$1"  
                elif [ -z "$SEARCH_CONTENT" ]; then  
                    SEARCH_CONTENT="$1"  
                else  
                    echo "Invalid usage: too many directory parameters!"  
                    exit 1  
                fi  
            elif [ -z "$SEARCH_CONTENT" ]; then  
                SEARCH_CONTENT="$1"  
            else  
                echo "Invalid usage: too many search-content parameters!"  
                exit 1  
            fi ;;  
        esac  
        shift  
    done  
      
    GREP_EXTRAL_OPTION="-n -H --color $GREP_EXT_REG_OPTION $GREP_IGNORE_CASE_OPTION"  
      
    if [ -z $SEARCH_TYPE ]; then  
        SEARCH_TYPE="string"  
    fi  
        
    if [ -z "$SEARCH_CONTENT" ]; then  
        # perhaps the content to be searched is a path-style name, and not specify path parameter  
        if [ -n "$SEARCH_PATH" ]; then  
            SEARCH_CONTENT="$SEARCH_PATH"  
            SEARCH_PATH="."  
        else  
            echo "Invalid usage: no search-content parameter!"  
            exit 1  
        fi  
    fi  
      
    if [ -z "$SEARCH_PATH" ]; then  
        SEARCH_PATH="."  
    fi  
      
    SearchString()  
    {  
        for file in `ls`; do  
            if [ "$file" = "." -o "$file" = ".." ]; then  
                continue  
            fi  
            if [ -d $file ]; then  
                cd ./$file # add "./" for those special directories whose name begin with "-"  
                SearchString  
                cd ..  
                continue  
            fi  
            if grep $GREP_EXTRAL_OPTION "$SEARCH_CONTENT" "`pwd`/$file" ; then  
                let "SEARCH_MATCH_COUNT+=1"  
            fi  
        done  
    }  
      
    Search()  
    {  
        for file in `ls`; do  
            if [ "$file" = "." -o "$file" = ".." ]; then  
                continue  
            fi  
            if [ -d $file ]; then  
                cd $file  
                Search  
                cd ..  
                continue  
            fi  
              
            case $SEARCH_TYPE in  
            macro)  
                if grep $GREP_EXTRAL_OPTION "#[[:space:]]*define[[:space:]]*$SEARCH_CONTENT" "`pwd`/$file" ; then  
                    let "SEARCH_MATCH_COUNT+=1"  
                fi;;  
            typedef)  
                if grep $GREP_EXTRAL_OPTION "typedef.*$SEARCH_CONTENT" "`pwd`/$file" ; then  
                    let "SEARCH_MATCH_COUNT+=1"  
                fi;;  
            class)  
                if grep $GREP_EXTRAL_OPTION "class.*$SEARCH_CONTENT" "`pwd`/$file" ; then  
                    let "SEARCH_MATCH_COUNT+=1"  
                fi;;  
            struct)  
                if grep $GREP_EXTRAL_OPTION "struct.*$SEARCH_CONTENT" "`pwd`/$file" ; then  
                    let "SEARCH_MATCH_COUNT+=1"  
                fi;;  
            *)  
                if grep $GREP_EXTRAL_OPTION "$SEARCH_CONTENT" "`pwd`/$file" ; then  
                    let "SEARCH_MATCH_COUNT+=1"  
                fi;;  
            esac  
        done  
    }  
      
    pushd $SEARCH_PATH > /dev/null  
    SEARCH_MATCH_COUNT=0  
    if [ "$SEARCH_TYPE" = "string" ]; then  
        SearchString  
    else  
        Search  
    fi  
    if [ $SEARCH_MATCH_COUNT -lt 1 ]; then  
        echo -e "No $SEARCH_TYPE matches \033[40;31m$SEARCH_CONTENT\033[0m in \033[40;31m$SEARCH_PATH\033[0m directory and its sub-directory!"  
    fi  
    popd > /dev/null 

#!/bin/bash  
      
    Usage()  
    {  
        echo "Usage: ${0##*/} [option] [path] filename"  
        echo "    -a,--absolute  dispaly absolute path"  
        echo "    -r,--relative  dispaly relative path"  
        echo "    -h,--help      display this information"  
        echo "[Note]: If you don't specify any option, -a will be used by default."  
    }  
      
    if [ $# -eq 0 ]; then  
        echo "Invalid usage: no filename specified!"  
        exit 1  
    fi  
      
    while [ $# -gt 0 ]; do  
        case $1 in  
        -*)  
            # ignore duplicated and conflicted options  
            case $1 in  
            -a|--absolute)  
                FLAG_ABSOLUTE_PATH="true"  
                ;;  
            -r|--relative)  
                FLAG_ABSOLUTE_PATH="false"  
                ;;  
            -h|--help)  
                Usage  
                exit 0  
                ;;  
            *)  
                echo "Invalid usage: unknown option $1!"  
                exit 1  
                ;;  
            esac ;;  
        *)  
            if [ -d "$1" ]; then  
                if [ -z "$SEARCH_PATH" ]; then  
                    SEARCH_PATH="$1"  
                elif [ -z "$SEARCH_FILE" ]; then  
                    SEARCH_FILE="$1"  
                else  
                    echo "Invalid usage: too many directory parameters!"  
                    exit 1  
                fi  
            elif [ -z "$SEARCH_FILE" ]; then  
                SEARCH_FILE="$1"  
            else  
                echo "Invalid use: too many filename parameters!"  
                exit 1  
            fi  
            ;;  
        esac  
        shift  
    done  
      
    if [ -z $FLAG_ABSOLUTE_PATH ]; then  
        FLAG_ABSOLUTE_PATH="true"  
    fi  
      
    if [ -z "$SEARCH_FILE" ]; then  
        # perhaps the filename to be searched is a path-style name, and not specify path parameter  
        if [ -n "$SEARCH_PATH" ]; then  
            SEARCH_FILE="$SEARCH_PATH"  
            SEARCH_PATH="."  
        else  
            echo "Invalid usage: no filename specified!"  
            exit 1  
        fi  
    fi  
      
    if [ -z "$SEARCH_PATH" ]; then  
      SEARCH_PATH="."  
    fi  
      
    SearchFile()  
    {  
        # In some systems, find not support -L option (find: invalid predicate '-L')  
        if find -L /usr -maxdepth 1 -name tmp 2&> /dev/null ; then  
            FUN_SF_FIND_L_OPTION="-L"  
        else  
            FUN_SF_FIND_L_OPTION=""  
        fi  
        if [ "$FLAG_ABSOLUTE_PATH" = "true" ]; then  
            cd $SEARCH_PATH  
            FUN_SF_CURRENT_PATH=`pwd`/  
            find $FUN_SF_FIND_L_OPTION . -type f | grep $SEARCH_FILE | sed "s,\./,$FUN_SF_CURRENT_PATH,g" | grep --color $SEARCH_FILE  
        else  
            find $FUN_SF_FIND_L_OPTION $SEARCH_PATH -type f | grep --color $SEARCH_FILE  
        fi  
    }  
      
    SearchFile