The exit and exit status codes exit are used to end a script, just like in C. it also returns a value, which is passed to the parent process of the script. The parent process uses this value for further processing. each command returns an exit
Exit and exit Status Codes
Exit is used to end a script, just like in C. it also returns a value, which is passed to the parent process of the script. The parent process uses this value for further processing.
Each command returns an exit status
Linux provides a special variable $ to save the exit status code of the last executed command. For commands that need to be checked, you must view or use the $? variable immediately after it has been run. Its value becomes the exit status code of
Exit is used to end a script in which the script terminates immediately when the Exit command is encountered, and the terminating exit status depends on the number following the Exit command;Exit [n]: Custom exit status code;An example is described.1
1. IntruductionExitmakeShell(script) to exit with a specified status value, Execute without parametersExitwhen, Shellor the script exits with the status value of the last execution command. Shellbefore exiting, Trapcan huntEXITsignal. 0indicates
Problems encountered when using Python to perform ant build:When using Os.system () to invoke ant build, the command line always exits normally, regardless of build success or failure (build Successful/build FAILED)To resolve the issue:The first
Just like what is the difference between the following code {code...} and {code? Humbly ask the experts for advice, just like
The following code
Echo 'configuration error'; exit (3); // Status 3 indicates exit due to configuration error
And
// Exit
/Usr/libexec/gconf-sanity-check-2 exit status 256 resolution after CentOS is started displays/usr/libexec/gconf-sanity-check-2 exit status 256. X-windows cannot be entered. Cause: some files under/tmp are deleted when the NFS server is set up...
Condition testTo determine whether a demand is satisfied, it needs to be implemented by a testing mechanism.different test conditions are expressed according to the execution status result of the command1, according to the execution status of the ID
When using the PIP install # # #时, sometimes there will be problems like the title, and the problems I have encountered are as follows:
_posixsubprocess.c:3:20:fatal error:python.h:no such file or directory
#include "Python.h"
Error:command ' gcc ' failed with exit status 1 appears when installing mysql-python-1.2.3 on Linux Centos 4.3,The reason is because the Mysql-devel package is not installedyum install mysql-develsuccessfully resolved using.Just remember to report
[[email protected] mysql-python-1.2.3]# python setup.py installfunction...._mysql.c:133:error: ' Er_syntax_error ' undeclared (first use of this function)_mysql.c:380:error: ' _mysql_connectionobject ' has no member named ' Connection
using the Install Python module appears error:command ' gcc ' failed with exit status 1 , clearly installed GCC, how can not, and then found that failed is not the found, which shows that this error is not much of a GCC relationship, should be
Recently, I have been doing this project in large numbers. Because of the limited range of floating-point numbers, float-type floating-point number has a maximum of 7 decimal digits, if it is defined as float, and the number of input more than 7
Problem Description:The CentOS startup is reported as follows: " Configuration Server error/usr/libexec/gconf-sanity-check-2 exit status is"Cause of the problem:When you install Hadoop, you mistakenly delete the/tmp file or change the/tmp permission.
Recently when installing the Paramiko module, always error: Error:command ' gcc ' failed with exit status 1, began to compare scratching heads. Find a lot of information, said most of the lack of python-devel package, but not!At last it was hard to
During the installation of the software, the following error occurred while installing lxmlError:command ' gcc ' failed with exit status 1GCC of course no problem, the problem is because of the lack of relevant components,Install the following 2
Win7 64-bit installation pcapy pack times wrong:Error:command ' "C:\Users\Administrator\AppData\Local\Programs\Common\Microsoft\Visual C + + for python\9.0\vc\bin\ Amd64\link.exe "' failed with exit status 1120After the installation process is
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