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In .inputrc I store readline commands for bash, for example:

bind "\C-S": i-search-fwd

I do the same in .bindings for tcsh:

bindkey "^S" i-search-fwd

To specify readline variables in .inputrc I do:

set visible-stats on

However I haven't been able to do the same for tcsh. I have tried with set and bindkey.

So first question is, how to specify readline variables for tcsh?

Finally, is there a man page or man section for bindkey? For example I can find info for bind in man bash.

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readline is a library that is used by bash and some other software, but not by tcsh. For historical reasons, tcsh has its own implementation of readline-like functionality, whose feature set does not necessarily match one-for-one with readline's. So attempting to set readline variables for tcsh is fruitless, as the two have nothing to do with each other.

The closest equivalent of readline's visible-stats in tcsh is the shell variable addsuffix, and it should be already set by default.

tcsh's bindkey is a tcsh shell builtin, so you'll find it described in man tcsh, in the Builtin commands section. The addsuffix is also described in the same man page, in the Special shell variables section.

  • addsuffix is about adding the / after completing a directory in the inserted completion. visible-stats in readline is about adding /, @, *... suffixes to displayed files. That's what tcsh does by default (upon ^D or also upon TAB with set autolist) and AFAIK, there's no way to disable it. See also set colors to get the completion in color à la GNU ls --color – Stéphane Chazelas Apr 15 '18 at 21:17
  • Note that tcsh line editor predates bash's readline by a long time, and most of readline's features are actually copied/inspired from tcsh – Stéphane Chazelas Apr 15 '18 at 21:19

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