tl;dr readline 8.1 turns on bracketed paste and appears to break multi-line pasting in vtysh Hi - I noticed that on a few of my boxes I can no longer paste a set of commands into vtysh using either FRR 6.x or 7.x. The result was that the lines were treated as a single line and therefore rejected. For example, if I want to create a simple route-map like so: route-map foo permit 5 set as-path prepend 1 2 3 4 end Here's what happened when I first pasted the 3x lines: ====snip==== excalibur(config)# route-map foo permit 5 set as-path prepend 1 2 3 4 end ====snip==== (the pasted text is highlighted in the terminal) After hitting enter vtysh rejects the command because it sees it as a single line (I think): ====snip==== % Unknown command: route-map foo permit 5 set as-path prepend 1 2 3 4 end excalibur(config)# ====snip==== The expected result should look something like this (I manually typed it in): ====snip==== excalibur(config)# route-map foo permit 5 excalibur(config-route-map)# set as-path prepend 1 2 3 4 excalibur(config-route-map)# end excalibur# ====snip==== I dug a little deeper and it looks like this is a result of bracketed paste[0] that has been enabled in the 8.1 release of GNU readline released in Dec of 2020[1]. I confirmed that an older system I have still running readline 8.0 does not have this issue. I think vtysh rejects the command because of the escape characters that are used with bracketed paste. I couldn't find any option to disable bracketed paste in readline itself or vtysh. Shells like Zsh and Bash have options for it in their config files. Does anyone know how to disable bracketed paste in vtysh? Or, is there something else funky going on here? I'm using rxvt-unicode on Linux/X11. I tested this with Terminal.app on Big Sur as well and got the same result. Thanks! - Mark [0] https://cirw.in/blog/bracketed-paste [1] https://lwn.net/Articles/839213/ (see h. in the CHANGES list) -- Mark Kamichoff prox@prolixium.com https://www.prolixium.com/