Command Return Error Or Not Understood Ateobex
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it always returns a status. When a Tcl command or procedure encounters an error during its execution, the global shell script exit code variable errorInfo is set, and an error condition is generated. If you bash if exit code have proc a that called proc b that called c that called d , if d generates an bash script exit on error error, the "call stack" will unwind. Since d generates an error, c will not complete execution cleanly, and will have to pass the error up to b , and in turn
Exit Bash Shell
on to a. Each procedure adds some information about the problem to the report. For instance: proc a {} { b } proc b {} { c } proc c {} { d } proc d {} { some_command } a Produces the following output: invalid command name "some_command" while executing "some_command" (procedure "d" line 2) invoked from within "d" (procedure "c" linux exit code line 2) invoked from within "c" (procedure "b" line 2) invoked from within "b" (procedure "a" line 2) invoked from within "a" (file "errors.tcl" line 16) This actually occurs when any exception condition occurs, including break and continue. The break and continue commands normally occur within a loop of some sort, and the loop command catches the exception and processes it properly, meaning that it either stops executing the loop, or continues on to the next instance of the loop without executing the rest of the loop body. It is possible to "catch" errors and exceptions with the catch command, which runs some code, and catches any errors that code happens to generate. The programmer can then decide what to do about those errors and act accordingly, instead of having the whole application come to a halt. For example, if an open call returns an error, the user could be prompted to provide another file name. A Tcl proc can also generate an error status condition. This can be done by specifying an error return with an option to the return command, o
Support Quickstart Video Playbooks Intro to Playbooks Playbook Roles and Include Statements Variables Jinja2 filters Jinja2 tests Conditionals Loops Blocks Strategies Best Practices Playbooks: Special Topics Become unix exit codes (Privilege Escalation) Accelerated Mode Asynchronous Actions and Polling Check Mode ("Dry
Bash Exit Function
Run") Playbook Debugger Delegation, Rolling Updates, and Local Actions Setting the Environment (and Working With Proxies) Error
Bash Not Equal
Handling In Playbooks Advanced Syntax Using Lookups Prompts Tags Vault Start and Step Directives Glossary About Modules Introduction Core Modules Extras Modules Common Return Values Internal use https://www.tcl.tk/man/tcl8.5/tutorial/Tcl36.html Module Index All Modules Cloud Modules Clustering Modules Commands Modules Database Modules Files Modules Identity Modules Inventory Modules Messaging Modules Monitoring Modules Network Modules Notification Modules Packaging Modules Remote Management Modules Source Control Modules Storage Modules System Modules Univention Modules Utilities Modules Web Infrastructure Modules Windows Modules Detailed Guides Amazon Web Services Guide Getting http://docs.ansible.com/playbooks_error_handling.html Started with Azure Rackspace Cloud Guide Google Cloud Platform Guide CloudStack Cloud Guide Using Vagrant and Ansible Continuous Delivery and Rolling Upgrades Getting Started with Docker Developer Information Ansible Developer Guide Ansible Tower Community Information & Contributing Ansible Users For Current and Prospective Developers Other Topics Community Code of Conduct Contributors License Agreement Ansible Galaxy The Website The ansible-galaxy command line tool Testing Strategies Integrating Testing With Ansible Playbooks The Right Level of Testing Check Mode As A Drift Test Modules That Are Useful for Testing Testing Lifecycle Integrating Testing With Rolling Updates Achieving Continuous Deployment Conclusion Frequently Asked Questions How can I set the PATH or any other environment variable for a task or entire playbook? How do I handle different machines needing different user accounts or ports to log in with? How do I get ansible to reuse connections, enable Kerberized SSH, or have Ansible pay attention to my local SSH config file? How do I configure a jump hos
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The exit command terminates a script, just as in a C program. It can also return a value, http://tldp.org/LDP/abs/html/exit-status.html which is available to the script's parent process.Every command returns an exit status (sometimes referred to as a return status or exit code). A successful command returns a 0, while an unsuccessful one returns a non-zero value that usually can be interpreted as an error code. Well-behaved UNIX commands, programs, and utilities return exit code a 0 exit code upon successful completion, though there are some exceptions.Likewise, functions within a script and the script itself return an exit status. The last command executed in the function or script determines the exit status. Within a script, an exit nnn command may be used to deliver an nnn exit status to command return error the shell (nnn must be an integer in the 0 - 255 range).When a script ends with an exit that has no parameter, the exit status of the script is the exit status of the last command executed in the script (previous to the exit).#!/bin/bash COMMAND_1 . . . COMMAND_LAST # Will exit with status of last command. exitThe equivalent of a bare exit is exit $? or even just omitting the exit.#!/bin/bash COMMAND_1 . . . COMMAND_LAST # Will exit with status of last command. exit $?#!/bin/bash COMMAND1 . . . COMMAND_LAST # Will exit with status of last command.be down. Please try the request again. Your cache administrator is webmaster. Generated Wed, 05 Oct 2016 17:22:35 GMT by s_hv972 (squid/3.5.20)