Yamini's Blog

Taking a cue from a blog written by my friend Harsha, I thought why not try the same for wadm, the new CLI in Web Server 7.0 Now that wadm has some 300+ commands to perform various administrative tasks, auto completing (or tab completion) commands is a great help!

wadm comes with an auto completor for commands in shell mode. But for running wadm commands in single mode, you need to be aware of the command name and usage.

For those who don't know, bash has a feature called programmable auto completion ('man bash' for more info). What it means is that you can add your own rules for completing custom commands.

Just follow these steps to set up wadm (which I did on my Ubuntu):

1. Create /etc/bash_completion.d if it doesn't already exist.

2. Save this script as wadm in /etc/bash_completion.d

3. Save this commands and options file as wadm_commands.txt in /etc/bash_completion.d

4. Source the script into your shell and start tabbing!

$ cd <install-root>/bin $ source /etc/bash_completion.d/wadm $ wadm l[TAB]ist-[TAB][TAB] list-acls                                            list-error-pages                                     list-mail-resources list-auth-realm-userprops              list-events                                              list-mime-types list-auth-realms                              list-external-jndi-resource-userprops  list-nodes list-authdb-userprops                    list-external-jndi-resources                  list-org-units list-authdbs                                    list-group-members                               list-reverse-proxy-headers list-certs                                          list-groups                                             list-reverse-proxy-uris list-cgi-dirs                                      list-http-listeners                                  list-search-collections list-cgi-envvars                               list-instances                                         list-soap-auth-provider-userprops list-ciphers                                     list-jdbc-resource-userprops                 list-soap-auth-providers list-config-files                               list-jdbc-resources                                 list-tokens list-configs                                      list-jvm-options                                      list-uri-patterns list-crls                                            list-jvm-profilers                                    list-url-redirects list-custom-resource-userprops    list-lifecycle-module-userprops            list-users list-custom-resources                    list-lifecycle-modules                             list-virtual-servers list-dav-collections                         list-locks                                                 list-webapps list-document-dirs                         list-mail-resource-userprops bash-3.00$ wadm list-n[TAB]odes [TAB]--[TAB][TAB] --all            --host                --no-ssl               --port           --user --echo        --no-prompt      --password-file  --rcfile         --verbose

As an added tip, I have the following setting in ~/.inputrc file which enables auto completion on single [TAB] key press. Double tab press is the default intended behaviour.

$ cat ~/.inputrc set show-all-if-ambiguous on