bin/checkEnv.sh

#!/bin/sh
#
# Copyright 2019 WeBank
#
# Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
say() {
    printf 'check command fail \n %s\n' "$1"
}

err() {
    say "$1" >&2
    exit 1
}

check_cmd() {
    command -v "$1" > /dev/null 2>&1
}

need_cmd() {
    if ! check_cmd "$1"; then
        err "need '$1' (your linux command not found)"
    fi
}
echo "<-----start to check used cmd---->"
need_cmd yum
need_cmd java
need_cmd mysql
need_cmd unzip
need_cmd expect
need_cmd telnet
need_cmd tar
need_cmd sed
need_cmd dos2unix
echo "<-----end to check used cmd---->"