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    Which bash version? I cannot reproduce, also the pipeline could be something like awk -v user="$USER" '$0 ~ user { print $NF; exit }' untested though. Commented May 1 at 0:21
  • bash 5.2.21 & .37. I'll see if I can try in others. Good tip to fork fewer processes. Commented May 1 at 0:36
  • I see you have escaped one alias in \ls. Any other aliases you might have forgotten to escape? Commented May 1 at 0:46
  • I also cannot reproduce (bash 5.2.37). Does it still reproduce if you run it inside bash --norc --noprofile? I suspect something from your .bashrc is necessary to reproduce Commented May 1 at 0:50
  • I think you're right @ComputerDruid. I couldn't reproduce when logging in with a different SSH client. I'll have to isolate the cause and update/answer/delete the question. Commented May 1 at 1:36