$ ls /tmp/streamlinkpipe*
fish: No matches for wildcard '/tmp/streamlinkpipe*'. See `help language#wildcards-globbing`.
 ls /tmp/streamlinkpipe*
    ^~~~~~~~~~~~~~~~~~~^
$ streamlink -l debug --player-fifo httpstream://file:///does/not/exist best
[cli][debug] OS:         Linux-7.0.7-1-git-x86_64-with-glibc2.43
[cli][debug] Python:     3.14.5
[cli][debug] OpenSSL:    OpenSSL 3.6.2 7 Apr 2026
[cli][debug] Streamlink: 8.4.0+21.g93adf1e7
[cli][debug] Dependencies:
[cli][debug]  certifi: 2026.5.20
[cli][debug]  isodate: 0.7.2
[cli][debug]  lxml: 6.1.1
[cli][debug]  pycountry: 26.2.16
[cli][debug]  pycryptodome: 3.23.0
[cli][debug]  PySocks: 1.7.1
[cli][debug]  requests: 2.34.2
[cli][debug]  trio: 0.33.0
[cli][debug]  trio-websocket: 0.12.2
[cli][debug]  typing-extensions: 4.15.0
[cli][debug]  urllib3: 2.7.0
[cli][debug]  websocket-client: 1.9.0
[cli][debug] Arguments:
[cli][debug]  url=httpstream://file:///does/not/exist
[cli][debug]  stream=['best']
[cli][debug]  --loglevel=debug
[cli][debug]  --player=mpv
[cli][debug]  --player-fifo=True
[cli][debug]  --webbrowser-headless=True
[cli][info] Found matching plugin http for URL httpstream://file:///does/not/exist
[plugins.http][debug] URL=file:///does/not/exist; params={}
[cli][info] Available streams: live (worst, best)
[cli][info] Opening stream: live (http)
[utils.named_pipe][info] Creating pipe streamlinkpipe-1083536-1-7088
[cli][info] Starting player: mpv
[cli][error] Try 1/1: Could not open stream <HTTPStream ['http', 'file:///does/not/exist']> (Could not open stream: Unable to open URL: file:///does/not/exist (404 Client Error: None for url: file:///does/not/exist))
error: Could not open stream <HTTPStream ['http', 'file:///does/not/exist']>, tried 1 times, exiting
$ ls /tmp/streamlinkpipe*
fish: No matches for wildcard '/tmp/streamlinkpipe*'. See `help language#wildcards-globbing`.
 ls /tmp/streamlinkpipe*
    ^~~~~~~~~~~~~~~~~~~^