파일 수정 Shell Program

1. Title :

 

 파일 수정 Shell Program

 

2. Purpose :

 

파일의 특정 내용을 수정하는 프로그램

 

3. 사용법 :

 

1) sh modifyFile.sh 명령어를 입력하면 필수 아규먼트와 옵션 아규먼트 안내가 나온다.

 

2) 설명대로 아규먼트를 넣어주면 실행이 됨.

 

3) 변경할 내용이 중복이면 변경할 내용의 특정행을 입력하도록 설정

 

4. Supplement point :

 

1) Backup 기능

 

2) 변경할 내용이 없을 때 예외 처리

 

 

 

 

 

modifyFile.sh

#!/bin/ksh

### include shell ###

. ./help.sh
. ./util.sh

#================================== Variable 

count=0

#================================== Arg Check


if [ -z "$1" ] || [ -z "$2" ] || [ -z "$3" ] || [ -z "$4" ] || [ -z "$5" ]
then
	helpModifiedFile	
	exit
fi

printArgCheckTitle

if [ -z "$6" ]
then
	echo "param6 (specified line) is null"
fi

#================================== Validate
# 1. validateFile
# 2. validateExisitingContent

# 1. validateFile

printFileValidateTitle

if isFile $1 
then
 	echo ""	
else
	echo ""
	echo "shell program exit."
	exit
fi

# 2. validateExisitingContent

printContentValidateTitle (unembodiment)

if isContent $1 (unembodiment)
then
	echo ""
else
	echo ""
	echo "shell program exit."
	exit
fi

#================================== Module 
# 1. backup (unembodiment)
# 2. CheckDuplicateModifyFilePart
# 3. ExecuteModifyFile


# 1. backup


# 2. CheckDuplicateModifyFilePart

if [ -z "$6" ]
then
	for i in `grep -n $4 $1 | sed 's/ //g'`
	do
		echo "[assume modified part] Line $i"
		count=`expr $count + 1`
	done
else
	echo "[assume modified part] Line `sed "$6,$6s/$4/$5/" $1 | grep -n $5`"
fi

if [ "$count" -ge 2 ]
then
	echo " "
	echo "result = duplicte"
	echo "input param4 (specified line)"
	echo "program exit"
	exit
fi


# 3. ExecuteModifyFile

echo ""
echo "#modify"

if [ -z "$6" ]
then
	sed "s/$4/$5/" $1 > $2
	echo "complete"
else
	sed "$6,$6s/$4/$5/" $1 > $2
	echo "complete"
fi

 

 

help.sh

function helpModifiedFile 
{	
	echo ""
	echo "# modifiedFile_help #"
	echo ""
	echo "* Essential"
	echo "@1=existing FileName"
	echo "@2=new FileName"
	echo "@3=backup FileName"
	echo "@4=existing content"
	echo "@5=modified content"
	echo ""
	echo "* Optional"
	echo "@6=specified line"
	echo ""
}

function help
{
	echo "help"
}

util.sh

isFile()
{

status=0

for var in "$@"
do
	if [ -f "$var" ]
	then
		echo ""
	else
		echo "$var is not exist"
		status=1
	fi
done

return $status
}

function printFileValidateTitle
{
	echo ""
	echo "# file validate #"
	echo ""
}

function printArgCheckTitle
{
	echo ""
	echo "# Arg Check #"
	echo ""
}

function printModuleTitle
{
	echo ""
	echo "# Module #"
	echo ""
}