Server.HasSession
HasSession reports whether Target selects a session. With Pattern false it compares session names exactly; with Pattern true, tmux may resolve IDs, client TTYs, unique prefixes, or globs. Pattern-mode completed nonzero exits are misses. Exact-name lookup treats ErrNoServer as a miss and returns other failures.
Source and package
- Qualified name
-
tmux.Server. Has Session - Package
- tmux
- Declared in
Server- Distribution
- github.com/libtmux/libtmux-go/tmux
- Source
- tmux/session_lifecycle.go
- Other languages
- Perl Erlang PowerShell Julia Elixir Haskell Common Lisp Python Ruby Lua TypeScriptRustJavaC# C++ Swift Kotlin Scala OCaml F# Clojure
- func (s Server) HasSession( ctx context
.Context , request HasSession , ) (bool, error)Request -
Description#
Exact-name lookup lists sessions because tmux's exact-match marker still resolves identifiers and client TTYs.
- Parameters
tmux command#
The tmux commands behind HasSession.
has-session (the request sets Pattern) list-sessions (the request does not set Pattern) tmux C API#
The C declarations in tmux that implement these commands.
Each path starts at a function a command runs, which is degree 1. The degree counts steps from there along the path, and each step is a call or a reference: degree 2 is reached from that function, degree 3 from the next, and so on.
Create a session and its first pane
- 1
cmd_new_session_exec - calls → 2
spawn_window - calls → 3
spawn_pane - calls → 4
window_add_pane - calls → 5
window_pane_create
In other ports#
Whether a session with this name exists
| Language | Equivalent |
|---|---|
| Python | libtmux |
| Haskell | No public Haskell equivalent is implemented; the current modules expose scalar values and version parsing. |
| TypeScript | server |
| Rust | server |
| Java | io |
| C# | Lib |
| C++ | no equivalent on Server |
| Swift | Server |
| OCaml | No direct public OCaml equivalent is recorded for this operation. |
| Perl | No dedicated equivalent in the selected Perl surface. Explicit Server::cmd remains available for native tmux commands. |
No equivalent is recorded in Ruby, Lua, PowerShell, Julia, Erlang, Elixir, Common Lisp, Clojure, Kotlin, Scala or F#.