og-linuxgsm/lgsm/modules/command_send.sh
Silas J. Matson 51ad60e180
fix: Set TERM=screen for all non-interactive tmux calls (#4860)
When connected to a server via ssh, and the server doesn't have the
  proper terminfo, tmux will fail with 'unsupported terminal' errors.

  These errors are not surfaced by the scripts, e.g. details, start,
  stop, so they result in either silent failures or don't work at all.

      e.g. `./mcserver details` on my server showed 0% CPU, 0% Memory,
           and STOPPED for the server status when the server was
           actually running. This was because the tmux calls to get
           this info failed.

           The root cause of this was that I was connected to my server
           via kitty, a terminal emulator that my server did not have
           terminfo for.

  This can be resolved via running `infocmp -x xterm-kitty | ssh
  YOUR-SERVER -- tic -x -` and replacing `xterm-kitty` with whatever
  is appropriate, or by setting TERM=xterm-256color in the ssh config,
  but that is not obvious to do when presented with silent failures.

  This commit sets TERM=screen for all non-interactive tmux calls,
  which resolves the issue. Note that the `console` command does not
  set this, as that is an interactive shell, and the user's terminfo
  should be passed.

Co-authored-by: Daniel Gibbs <me@danielgibbs.co.uk>
2026-07-19 19:45:40 +01:00

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#!/bin/bash
# LinuxGSM command_send.sh module
# Author: Daniel Gibbs
# Contributors: https://linuxgsm.com/contrib
# Website: https://linuxgsm.com
# Description: Send command to the server tmux console.
commandname="SEND"
commandaction="Send"
moduleselfname="$(basename "$(readlink -f "${BASH_SOURCE[0]}")")"
fn_firstcommand_set
check.sh
if [ -z "${userinput2}" ]; then
fn_print_header
fn_print_information_nl "Send a command to the console."
fi
check_status.sh
if [ "${status}" != "0" ]; then
if [ -n "${userinput2}" ]; then
commandtosend="${userinput2}"
else
echo ""
commandtosend=$(fn_prompt_message "send: ")
fi
echo ""
fn_print_dots "Sending command to console: \"${commandtosend}\""
fn_print_ok_nl "Sending command to console: \"${commandtosend}\""
TERM=screen tmux -L "${socketname}" send-keys -t "${sessionname}" "${commandtosend}" ENTER
fn_script_log_pass "Command \"${commandtosend}\" sent to console"
else
fn_print_error_nl "Unable to send command to console. Server not running"
fn_script_log_error "Unable to send command to console. Server not running"
fi
core_exit.sh