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Martin Hope
Zaza
Asked: 2017-02-17 17:37:01 +0800 CST
  • 0

尝试在 bash 脚本中实现自我语法检查以在test.sh 执行脚本之前运行语法检查。

error_exit()
{
        echo -e "$1" 1>&2
        exit 1
}
bash -n "$(basename $BASH_SOURCE)"
RESULT=$?
if [ $RESULT == 0 ]; then
  echo "[OK] Test pass"
else
  error_exit "Something is not right :( \n check the sytntax"
fi
starting-script

bash -nbash -x，如果有一些严重的语法错误但像以下小错误，则与工作 相同：

echo "somthing" && sleep5&&
./test.sh: line 14: sleep5: command not found

被忽略...

有什么方法可以处理完整的语法检查，并且可以在某种“沙盒模式”/“模拟模式”中运行脚本以捕获所有可能的错误，如果有错误则返回？

已编辑 如果脚本必须将脚本的某些部分复制到远程服务器中，例如在数百个从属服务器（受监控的服务器）上安装 nagios 的脚本等。不幸的是，文本复制并不总是顺利进行，错误可能是由将脚本自动复制为文本时发生错误，如果检测到任何错误，检查并结束脚本很重要。

linux bash syntax
Martin Hope
Zaza
Asked: 2016-12-20 11:43:42 +0800 CST
  • 0

全新安装 CentOS 7

# cat /etc/redhat-release
CentOS Linux release 7.3.1611 (Core)

yum -y install mariadb-server mariadb

# mysql -V
mysql  Ver 15.1 Distrib 5.5.52-MariaDB, for Linux (x86_64) using readline 5.1

/usr/bin/mysql_secure_installation


Enter current password for root (enter for none):
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
Enter current password for root (enter for none):

 mysqladmin password newpassword

mysqladmin: connect to server at 'localhost' failed
error: 'Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)'
Check that mysqld is running and that the socket: '/var/lib/mysql/mysql.sock' exists!

检查 /var/lib/mysql/

la /var/lib/mysql/

# ls /var/lib/mysql/
aria_log.00000001  aria_log_control  ibdata1  ib_logfile0  ib_logfile1  mysql  performance_schema  test

知道为什么会这样吗？以及如何解决

mysql centos7 mariadb