[英]Exit status -1 from a Linux shell script
I have some Unix shell scripts in one of our servers and I have written a Java program using Spring Boot which is deployed in another application server.From my Spring Boot application, I am remotely executing the shell script at the other server. 我的程序如下:
public int execute(String scriptName, String environemntVariable,
String serverIp, String username, String password) throws Exception {
Session session = null;
ChannelExec channelExec = null;
InputStream in = null;
BufferedReader reader = null;
List<String> result = new ArrayList<String>();
int exitStatus = 0;
try {
JSch jsch = new JSch();
session = jsch.getSession(username, serverIp);
session.setConfig("StrictHostKeyChecking", "no");
session.setPassword(password);
session.connect();
channelExec = (ChannelExec) session.openChannel("exec");
in = channelExec.getInputStream();
channelExec.setCommand(environemntVariable + " " + scriptName);
channelExec.connect();
reader = new BufferedReader(new InputStreamReader(in));
String line;
while ((line = reader.readLine()) != null) {
LOGGER.info(line);
result.add(line);
}
exitStatus = channelExec.getExitStatus();
LOGGER.info("exitStatus returned: " + exitStatus);
} catch(Exception e) {
LOGGER.info("Error occurred while running the script: \n", e);
exitStatus = 1;
} finally {
if (reader != null) {
reader.close();
}
if (in != null) {
in.close();
}
if (channelExec != null) {
channelExec.disconnect();
}
if (session != null) {
session.disconnect();
}
}
return exitStatus;
}
问题在于某些 shell 脚本,从 shell 脚本返回退出状态 -1。 我在文档中发现,成功完成后,返回的退出状态为 0,如果执行不成功,返回的退出状态将大于 0。有人可以指导我退出状态 -1 表示什么吗? 由于 shell 脚本正在成功执行,但返回的退出状态为 -1。
你有没有试过阅读文档?
回报:
远程命令返回的退出状态,如果命令尚未终止(或此通道类型没有命令),则返回 -1。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.