wiki/getting-started/command-line-interface/

[giscus[bot]]

wiki/getting-started/command-line-interface/

An Open Source Minecraft launcher with the ability to manage multiple instances, accounts and mods. Focused on user freedom and free redistributability.

https://prismlauncher.org/wiki/getting-started/command-line-interface/

[beedell-roke]

To find it, right-click on the instance you want to know the ID of, and then click on Instance Folder within the context menu.

“Instance Folder” ¹ doesn't exist:

²

Footnotes

1. prismlauncher.org/wiki/getting-started/command-line-interface/#what-is-an-instance-id-and-where-do-i-find-it ↩

2. discuss.kde.org/t/1682/7 ↩

[FabianHummel]

Click "Folder". The opened folder's name is the instance ID.

[beedell-roke]

Perhaps, @FabianHummel, I misunderstand what --launch does, then, because when I execute prismlauncher --launch 1.21.7 [1.27.1] despite “Folder” invoking /home/RokeJulianLockhart/.local/share/PrismLauncher/instances/1.21.7/, I merely see:

To clarify, I mean that the relevant instance is not invoked:

RokeJulianLockhart@Beedell:~$ prismlauncher --launch 1.27.1
QGuiApplication::setDesktopFileName: the specified desktop file name ends with .desktop. For compatibility reasons, the .desktop suffix will be removed. Please specify a desktop file name without .desktop suffix
     0.000 D | <> Log initialized.
     0.001 D | <> No migration needed from "PolyMC"
     0.001 D | <> No migration needed from "MultiMC"
     0.001 D | Prism Launcher, © 2022-2025 Prism Launcher Contributors, © 2021-2022 PolyMC Contributors, © 2012-2021 MultiMC Contributors
     0.001 D | Version                    :  "9.3"
     0.001 D | Platform                   :  "Fedora"
     0.001 D | Git commit                 :  ""
     0.001 D | Git refspec                :  "refs/heads/stable"
     0.001 D | Compiled for               :  "Linux 6.16.7-200.fc42.x86_64 x86_64"
     0.001 D | Compiled by                :  "GNU - 15.2.1"
     0.001 D | Build Artifact             :  ""
     0.001 D | Updates Enabled           :  No
     0.001 D | Work dir before adjustment :  "/home/RokeJulianLockhart"
     0.001 D | Work dir after adjustment  :  "/home/RokeJulianLockhart/.local/share/PrismLauncher"
     0.001 D | Adjusted by                :  "Persistent data path"
     0.001 D | Binary path                :  "/usr/bin"
     0.001 D | Application root path      :  "/usr"
     0.001 D | ID of instance to launch   :  "1.27.1"
     0.001 D | <> Paths set.
     0.011 D | Detected default console font: "Noto Sans Mono" , substitutions: ""
     0.026 D | <> Settings loaded.
     0.026 D | Detecting proxy settings...
     0.026 D | Using no proxy is an option!
     0.026 D | <> Network done.
     0.027 D | Loading Qt Language File for en_GB ...
     0.027 D | Loading Application Language File for en_GB ...
     0.027 D | Your language is "en_GB"
     0.027 D | <> Translations loaded.
     0.027 D | Started watching  "/home/RokeJulianLockhart/.local/share/PrismLauncher/icons"
     0.027 D | Sorting icon list...
     0.027 D | <> Instance icons initialized.
     0.027 D | [Theme] Determining System Widget Theme...
     0.027 D | [Theme] System theme seems to be: "breeze"
     0.027 D | [Theme] <> Initializing Icon Themes
     0.027 D | [Theme] Loaded Built-In Icon Theme "pe_colored"
     0.027 D | [Theme] Loaded Built-In Icon Theme "pe_light"
     0.027 D | [Theme] Loaded Built-In Icon Theme "pe_dark"
     0.027 D | [Theme] Loaded Built-In Icon Theme "pe_blue"
     0.027 D | [Theme] Loaded Built-In Icon Theme "breeze_light"
     0.027 D | [Theme] Loaded Built-In Icon Theme "breeze_dark"
     0.027 D | [Theme] Loaded Built-In Icon Theme "OSX"
     0.027 D | [Theme] Loaded Built-In Icon Theme "iOS"
     0.027 D | [Theme] Loaded Built-In Icon Theme "flat"
     0.027 D | [Theme] Loaded Built-In Icon Theme "flat_white"
     0.027 D | [Theme] Loaded Built-In Icon Theme "multimc"
     0.027 D | [Theme] Icon Theme Folder Path:  "/home/RokeJulianLockhart/.local/share/PrismLauncher/iconthemes"
     0.027 D | [Theme] <> Icon themes initialized.
     0.027 D | [Theme] <> Initializing Widget Themes
     0.027 D | [Theme] Loading Built-in Theme: "system"
     0.027 D | [Theme] Loading Built-in Theme: "dark"
     0.027 D | [Theme] Loading Built-in Theme: "bright"
     0.027 D | [Theme] <> Initializing System Widget Themes
     0.029 D | [Theme] Loading System Theme: "Breeze"
     0.029 D | [Theme] Loading System Theme: "Windows"
     0.029 D | [Theme] Loading System Theme: "Fusion"
     0.029 D | [Theme] Theme Folder Path:  "/home/RokeJulianLockhart/.local/share/PrismLauncher/themes"
     0.029 D | [Theme] <> Widget themes initialized.
     0.029 D | [Theme] CatPacks Folder Path: "/home/RokeJulianLockhart/.local/share/PrismLauncher/catpacks"
     0.057 D | Instance path              :  "instances"
     0.057 D | Loading Instances...
     0.057 D | Discovering instances in "/home/RokeJulianLockhart/.local/share/PrismLauncher/instances"
     0.057 D | Found instance ID "Redy's Pack (Fabric)"
     0.057 D | Found instance ID "1.21.5"
     0.057 D | Found instance ID "1.21.7"
     0.057 D | Will load group list now.
     0.057 D | Group list loaded.
     0.058 D | Loaded instance  "Redy's Pack (Fabric)"  from  "/home/RokeJulianLockhart/.local/share/PrismLauncher/instances/Redy's Pack (Fabric)"
     0.058 D | Loaded instance  "1.21.5"  from  "/home/RokeJulianLockhart/.local/share/PrismLauncher/instances/1.21.5"
     0.058 D | Loaded instance  "1.21.7"  from  "/home/RokeJulianLockhart/.local/share/PrismLauncher/instances/1.21.7"
     0.058 D | <> Instances loaded.
     0.058 D | Loading accounts...
     0.058 D | AccountList: Queued default account with internal ID  "0c841a74cad04eeead2bcfe6e5cc3cc1"  to refresh first
     0.091 D | AuthFlow: "Logging in with Microsoft account."
     0.119 D | RefreshSchedule: Processing account  "rokejulianlo"  with internal ID  "0c841a74cad04eeead2bcfe6e5cc3cc1"
     0.119 D | <> Accounts loaded.
     0.120 D | <> Cache initialized.
     0.120 D | Downloading Translations Index...
     0.120 W | [launcher.task.net]: [HttpMetaCache] Removing cache entry because of old age!
     0.121 C | dlopen() failed: ed object f: cannot open shared object file: No such file or directory
     0.123 D | Detected native libraries: "" "/lib64/libopenal.so"
     0.123 D | [Theme] <> Icon theme set.
     0.123 D | [Theme] applying theme "System"
     0.124 D | [Theme] <> Application theme set.
     0.144 D | Reloading news.
     0.144 D | [launcher.instance.profile.resolve]: Loading components
     0.144 D | "1.21.7" | Component list save is scheduled
     0.146 D | [launcher.instance.profile.resolve]: "1.21.7" | Remote loading is being run for "LWJGL 3"
     0.148 D | [launcher.instance.profile.resolve]: "1.21.7" | Remote loading is being run for "Minecraft"
     0.148 D | [launcher.instance.profile]: "1.21.7" | Component list update/resolve task failed  Reason: "Some component metadata load tasks failed."
     0.154 D | Instance-type specific settings were loaded!
     0.159 D | <> Main window shown.
     0.164 D | Dir changed: "/home/RokeJulianLockhart/.local/share/PrismLauncher/translations"
     0.165 D | Loading Qt Language File for en_GB ...
     0.165 D | Loading Application Language File for en_GB ...
     0.183 D | "1.21.7" | Component list save performed now

What I expect is:

1. 

2. 

[FabianHummel]

Check these three things:

1. in your message you tried to launch 1.21.1, even though you clearly meant to launch 1.21.7, but that may also just be a typo in your Github message
2. try to use quotes around the instance ID, e.g. --launch "1.21.7", maybe the dots mess up the name (some characters need to be escaped such as spaces)
3. Close the main launcher UI before running the command. That fixed it for me because I still had the launcher open and the command would just focus the opened window.

[beedell-roke]

@FabianHummel, indeed; I must have merely mistyped it… I suppose that a modal, informing me that no instance with that name exists, would have been of use. However, more so, don't be a moron! Thanks.