To see the path, display the value of the $Profile variable. PowerShell itself can easily tell you, but it can also just open one for editing without you having to explicitly bother with the path. To create or edit any of the profiles, of course, you need to know where to find them. I’ll be giving more details about this below in “How Many Profiles Do You Need?” The $Profile Variable ![]() If you do use multiple hosts, you might want to differentiate some things between an “all hosts” profile and a specific host profile. not shared with anyone else) you don’t need to worry about the “all users” profiles. $someVar++ or perhaps $someVar += 5 depending on what you want to do with it).Īs to which of the four to use, that largely depends on your own needs: if you use a dedicated computer (i.e. $someVar = 0) in AllUsersAllHosts, then increment it in each of the other profiles (e.g. First define and initialize it to a starting value (e.g. Another example, showing cooperation between profiles rather than contention, might be to increment a variable. If you were to define the same variable in all four profiles, the variable will, once you launch a PowerShell host and finally receive a prompt, have the value assigned by the last profile, CurrentUserCurrentHost, because each successively processed profile will overwrite that variable with its value. These profiles all peaceably co-exist so you then need to be aware of the precedence-they are listed above in the order of execution. Thus, taking all the combinations of users and hosts, you could potentially use any (or all) of four different profiles: PowerShell adds its own unique twist, though: it similarly distinguishes between host-level (one profile for each host) and system-level (one common profile for all hosts). This should be a familiar paradigm that you will have seen with many Windows applications. You can also add other session-specific elements to your profile so they are available in every session without having to import or re-create them.”Įach PowerShell host actually supports two profiles, one is user-level, distinct for each user, and the other is system-level, common to all users. You can add commands, aliases, functions, variables, snap-ins, modules, and Windows PowerShell drives. Quoting standard PowerShell help on about_profiles, “You can use the profile as a logon script to customize the environment. The PowerShell ProfileĪ PowerShell profile is nothing more than a fancy name for a script that runs when a PowerShell host starts. Other PowerShell hosts could potentially have different $ShellId values (for example, some of the freely available PowerShell IDEs include PowerGUI, PowerShell Analyzer, and PowerShell Plus, but I’ve not checked their $ShellId values). ![]() You will see that, if you examine the values for the three most common PowerShell hosts, they all use the same engine (shell) while each presents a different user interface (host). You can actually see the distinction by displaying the contents of the Name property of the $Host system variable alongside the $ShellId variable. Rather more accurately, you interact with a host application (like powershell.exe or powershell_ise.exe) that creates a runspace (an instance of the PowerShell engine). The Host, explains that you-as a user typing at the keyboard-do not directly interact with PowerShell’s shell (or engine). Don Jones, in his aptly titled post The Shell vs. There is a distinction between the shell and the host in PowerShell. And if one profile is good, wouldn’t more be better? It turns out that any single PowerShell session may use any one (or all) of four different profiles, and different PowerShell hosts provide yet more profile choices: But it is actually much simpler to use than all this might appear, once you appreciate where all the moving parts fit. However, PowerShell provides a mechanism, called the PowerShell profile, which allows you to recreate any such environmental constructs and settings each time you start up a new PowerShell session. But all of those are transitory: their effects disappear as soon as you close the PowerShell session. ![]() While you work with a PowerShell session, you can modify its state (or environment) in any number of ways: You might import modules, create functions, specify aliases, or define variables, to name a few.
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