NBNC代码行统计

#!/bin/bashfilename=$1echo "`whoami`"if [ $# -lt 1 ];then echo "usage : ./scripts filename" exit -1fiif [ ! -f $filename ];then echo "$filename is not a file" exit 0;fi user="`whoami`"if [ "$user" != "root" ];then echo "use scripts with root" exit 0;fi#删除空行,空行包括：tables + spacesed '/^[[:blank:]]*$/d' $filename > "${filename}_backup"#删除 // 所在的行sed -i '/^[[:blank:]]*\/\//d' "${filename}_backup"#/*xxxxx*/#打印/*所有的开始行grep -n '[[:blank:]]*/[*]' "${filename}_backup" | awk 'BEGIN{FS=":"}{print $1}' > "start.txt"#打印*/所有的结束行grep -n '[*]/[[:blank:]]*' "${filename}_backup" | awk 'BEGIN{FS=":"}{print $1}' > "end.txt"#合并两个文件，final.txt里面每行就是/*xx....\n....xx*/这种类型注释的开始行和起始行号paste "start.txt" "end.txt" > "final.txt"while read linedo #得到起始行 START=`echo "$line" | awk 'BEGIN{FS="\t"}{print $1}'` #得到结束行 END=`echo "$line" | awk 'BEGIN{FS="\t"}{print $2}'` #这里有一个bug，如是/*xxxx*/中的/*和*/在同一行出现,并且有代码也在同一行 # printf("hello world\n"); /*打印字符串*/ # /*打印字符串*/ #上面两种情况的就没法判断，希望大家优化 if [ $START -eq $END ];then  continue fi #删除/*到*/中间所有行 sed -i "${START},${END}d" "${filename}_backup"done < "final.txt"wc -l "${filename}_backup"rm -f "final.txt" "start.txt" "end.txt"