混合一个文件夹下的文件-尊龙凯时

#!/bin/bash
#author:        castle liu
#date:          2014/06/04
#desc:          merge files from a given dir,files should start with ${_base_name}
#usage:         mergefile -d[-d] [-c] -[-m]
_yesterday=`date -d yesterday  "%y%m%d"`
_work_d=""
_default_dir="${_work_d}${_yesterday}"
_backup_dir="${_work_d}"`date -d  yesterday  "%y%m"`
_base_name=""
_full_name="${_base_name}.${_yesterday}"
_header='date  "%f %t"'
_log_tmp=''
###func###
#print
#echo strings in a more confertable way
print(){
        string=$1
        echo "`eval ${_header}` ${string} "
}
#help
#print help info
help() {
        cat < /dev/null
        rm -rf `basename ${file}`
        print 'done.'
        cd ${dir}
}
#merge_file
#pass in a dirname
merge_file(){
        dir=$1
        _pwd=`pwd`
        cd ${dir}
        print "creating file:${_full_name}"
        touch ${_full_name}
        count=`ls ${_base_name}*.txt|wc -l`
        if [[ ${count} -gt 0 ]];then
            ls  ${_base_name}*.txt|while read file
                do
                if [[ "${file}" != "eof" ]];then
                        print "hanlering file:${file}"
                        cat ${file} >> ${_full_name}
                        rm -rf ${file}
                fi
                done
            print "file created."
            if [[ ${_compress} ]];then
                    targz "${_full_name}"
            fi
            if [[ ${_move_to_backup_dir} ]];then
                    mv "${_full_name}.tar.gz" ${_backup_dir}
                    if [[ $? -eq 0 ]];then
                        export _delete_dir=true
                    fi 
            fi 
        else
                print "there is no required file in dir:${_dir}"
                error_handler "002" "no_required_file" 2
        fi
        cd ${_pwd}
}
###main###
#parsing args
while getopts "d:cmd" arg
do
        case ${arg} in
                d)
                        export _dir="${optarg}"
                        export _use_dir=true
                        ;;
                c)
                        export _compress=true
                        ;;
                m)
                        export _move_to_backup_dir=true
                        ;;
                d)      export _use_default=true
                        ;;
                h)      help
                        exit 0
                        ;;
                ?)
                        error_handler 001 "param_error" 2
                        ;;
                esac
done
print "mergefile start..."
if [[ ${_use_dir} ]];then
        print "using dir:${_dir}"
	if [[ -d ${_dir} ]];then
                name=`basename ${_dir}`
                export _full_name=${_base_name}.${name}
                export _backup_dir=${_work_d}${name:0:6}
                #create backup dir if not exists.
                if [[ ! -d ${_backup_dir} ]];then
                        mkdir -p ${_backup_dir}
                fi
                merge_file ${_dir}
                if [[ ${_delete_dir} ]];then
                    print "deleting dir:${_dir}"
                    rm -rf ${_dir}
                fi
        else
                print "dir not exists,pls check."
                error_handler "003" "dir_not_exists." 2
        fi
elif [[ ${_use_default} ]];then
        print "using default dir:${_default_dir}"
        #create backup dir if not exists.
        if [[ ! -d ${_backup_dir} ]];then
                mkdir -p ${_backup_dir}
        fi
        if [[ -d ${_default_dir} ]];then
                merge_file ${_default_dir}
                if [[ ${_delete_dir} ]];then
                    print "deleting dir:${_default_dir}"
                    rm -rf ${_default_dir}
                fi
        else
                print "default dir not exists,pls check."
                error_handler "004" "default_dir_not_exists" 3
        fi
else
        error_handler 005 "param_error" 2
fi