shell脚本模版

#!/bin/bash

PATH=/usr/local/mysql/bin:/usr/local/bin:/bin:/usr/bin

# ========== CONFIG ==================

#source $(dirname $0)/config.sh   # load public config under the same dir

CONF=/tmp/conf
RST_DIR=/tmp

# ============DEBUG==================

# for debug
DEBUG=0
function Exec
{
    echo $1

    if [ $DEBUG -eq 0 ]
    then
        ($1)
    fi
}

LAST=$#   # get last parameter
if [[ ${!LAST} == "d"  || ${!LAST} == "debug" ]]
then
    echo ${!LAST}
    DEBUG=1
fi

# ========================================


function SH_Usage()
{
    echo "Usage: $0 DATE"
    echo "Example: $0 20111111"
    exit 1
}

if (($# < 1))
then
    SH_Usage
fi

typeset readonly CUR_DATE=$(date --date="$1" +%Y%m%d);
if [ "${CUR_DATE}" != "$1" ]
then
    echo "Error Date: $1" >&2
    SH_Usage;
fi

typeset readonly RST_DATE=${CUR_DATE}


CUR_DATE=`date --date="$1" +%Y%m%d`
RST_DATE=${CUR_DATE}

# =========================================

echo "Start of $0 $@ ..."`date "+%Y-%m-%d %X"`

cmd="rm $RST_DIR/*"

Exec "$cmd"

echo "End $0 $@."`date "+%Y-%m-%d %X"`

模版的各部分介绍：

1） 配置 -- 定义脚本所需的各种常量；

2）DEBUG -- 支持脚本调试

3）脚本参数判断、获取日期等常规操作

4）脚本主体