標籤:指令碼編輯器 bash編輯器 getopt使用
說明:這是一個比較簡單的bash指令碼編輯器,但是已經經過測試。書寫此部落格的原因,一方面是練習迴圈控制語言、函數、位置參數、本地變數以及函數參數調用,以及函數之間調用等等,還有就是獲得使用者選項以及選項的參數。
註:指令碼選項以及指令碼選項參數獲得方法使用getopt並進行進一步判斷,請查閱main()函數.
#!/bin/bash# Author: 李安傑# Time: 2014-12-05show_usage(){ echo ‘Usage mkscript.sh [-D|--description "script description"] [-A|--author "script author"] /path/to/somefile‘}write_file_header(){#寫檔案頭部資訊local file_path="$1"local desc=$2local auth=$3cat >> $file_path <<EOD#!/bin/bash# Description: $desc# Author: $auth#EOD}create_file(){# 建立新檔案local file_path="$1"judge_dir $file_path[ $? -eq 0 ] && write_file_header "$file_path" "$desc" "$auth" vim + $file_pathchk_syntax "$file_path" }judge_dir(){#判斷目錄是否存在切有寫入權限local file_path="$1"local dirname=$(dirname $file_path)if [ -d "$dirname" ];then[ -w "$dirname" ] && return 0else#echo "No such Directory or $dirname permission denied." exit 1 fi}chk_syntax(){# 判斷檔案是否有指令碼語法錯誤local file_path="$1"clearif /bin/bash -n "$file_path" ;thenchmod +x "$file_path" exit 0else while true;doread -p "File has a syntax error, whether to continue editing. (y/n):" optscase $opts iny|Y)vim + "$file_path"chk_syntax "$file_path";;n|N)exit 0;; esacdone fi}modify_file(){# 檔案修改相關操作local file_path="$1"local desc=$2local auth=$3judge_dir "$file_path"if [ $? -eq 0 ] ;thenheader=$(head -1 "$file_path")if [ "$header" != "#!/bin/bash" ]; thenecho "This is not a script file,grogram will be exit." && exit 1elif [ "$header" == ‘#!/bin/bash‘ ];thenif [ ! -z "auth" ] && [ ! -z "$desc" ];thenif grep "# Author:" "$file_path" && grep "# Description:" "$file_path";thensed -i "1,5 s/\(# Author:\).*/\1 $auth/" "$file_path"sed -i "1,5 s/\(# Description:\).*/\1 $desc/" "$file_path"else sed -i "1a \# Author: $auth" "$file_path"sed -i "2a \# Description: $desc" "$file_path"fivim + "$file_path"chk_syntax "$file_path"elif [ ! -z "$auth" ];thenif grep ‘# Author:‘ "$file_path" ;thensed -i "1,5 s/\(# Author:\).*/\1 $auth/" "$file_path"else sed -i "1a \# Author: $auth" "$file_path"fivim + "$file_path"chk_syntax "$file_path"elif [ ! -z "$desc" ];thenif grep ‘# Description:‘ "$file_path" ;thensed -i "1,5 s/\(# Description:\).*/\1 $desc/" "$file_path"elsesed -i "2a \# Description: $desc/" "$file_path"fivim + "$file_path"chk_syntax "$file_path"elsevim + "$file_path"chk_syntax "$file_path"fififi}main(){TEMP=`getopt -o A:D: --long author:,description: -- "[email protected]"`[ $? -ne 0 ] && echo -e "\033[31mERROR: unknown argument! \033[0m\n" && show_usage && exit 1 eval set -- "$TEMP"#echo "$TEMP"while true;do[ -z "$1" ] && show_usage && exit 1 case "$1" in -D|--description)#該選項的參數就是$2desc=$2[ ${desc:0:1} == "-" ] && [ -z ${desc:2:1} ] && show_usage && exit 1 shift 2;;-A|--author)#該選項的參數就是$2auth=$2[ ${auth:0:1} == "-" ] && [ -z ${auth:2:1} ] && show_usage && exit 1shift 2;;--)shift[ $# -ne 1 ] && show_usage && exit 1file_path="$1"break;;*)#使用其他參數給提示錯誤,並退出.show_usage && exit 1esacdone#echo "desc:$desc"#echo "auth:$auth "#echo "file_path: $file_path"if [ ! -f "$file_path" ];thencreate_file "$file_path" && chk_syntax "$file_path"elif [ -f "$file_path" ];thenmodify_file "$file_path" "$desc" "$auth"fi }main "[email protected]"
希望這篇部落格能協助到您,如果有更好的方法或改進的地方請,留言。謝謝您的耐心查閱。
本文出自 “心靜梵音” 部落格,請務必保留此出處http://mastters.blog.51cto.com/6516495/1586934
Linux bash綜合執行個體之 bash指令碼編輯器