deleteattr.sh

一个awk和bsh混合编程的例子

#!/bin/ksh

VERSION=V51D
REPORT_ID=10
CONFIG_FILE_NAME="Rep_$VERSION.cfg";
attrIdList=$1;

delRedundance()
{
	if [ -z "$VERSION" ]; then
   		echo "ERROR: version is not specified.";
   		exit 1;
	fi
   
	if [ -z "$REPORT_ID" ]; then
		echo "ERROR: report_id is not specified.";
		exit 1;
	fi
	
	if [ ! -r $CONFIG_FILE_NAME ]; then
		echo "ERROR: $CONFIG_FILE_NAME not exist.";
		exit 1;
	fi
	
	Obj_Deleted=`awk -F":" '	
		BEGIN {deleted=0;}
		/^ *\t* *#.*/ {;}
		/^ *\t* *$/ {;}
		/^[0-9]*/ {
			if ($1==id ){
				if (length($3)==0 ){
					deleted=1;
				}
			}
		}
		END {printf "%d\n",deleted;}' id=$REPORT_ID $CONFIG_FILE_NAME`;
	
	if [ $Obj_Deleted -eq 0 ]; then
	{
		Attr_Names=`awk -F":" '
		/^ *\t* *#.*/ {;}
		/^ *\t* *$/ {;}
		/^[0-9]*/ {
			if ($1==id ){
					printf "%s\n",$3;
			}
		}' id=$REPORT_ID $CONFIG_FILE_NAME`;
	}
	fi
	
	attrIdList_BAK=$attrIdList;
	attrIdList_BAK_TMP=${attrIdList_BAK#*\{};
	attrIdList_BAK=${attrIdList_BAK_TMP%*\}};
	
	attr_orig_array=`echo $attrIdList_BAK|awk -F":" '{
		for (ix=1; ix <=NF; ix+=1){
			printf "%s\n", $ix;
		}
	}'`;
	
	attrs_String="";
	for elem in $attr_orig_array 
	do
		found=0;
		for attr in $Attr_Names 
		do
			if [ "$attr" = "$elem" ]; then
				found=1;
				break;
			fi
		done
		if [ found -eq 0 ]; then
			attrs_String=$attrs_String":"$elem;
		fi
	done
	attrIdList_TMP=${attrs_String#*:};
	attrIdList="{"$attrIdList_TMP"}";
}


delRedundance;
for attr in $Attr_Names 
do
	echo $attr
done
echo "-------------------"
echo $attrIdList;