Running Remote Commands Interactively with SSH

crg@crg.eti.br (Cesar Gimenes) — Sat, 08 Feb 2025 13:38:17 -0300

I often need to run a command on a remote server without starting a full interactive session. I want the program to keep all the characteristics of a local process while running on the remote server.

At first, I just used the ssh command, specifying the server and the command to run:

ssh server command

This method doesn’t work well for programs that require a pseudo terminal, like Neovim. To fix that, I tried the -t option to force pseudo terminal allocation. With it, programs like ls display colors, but the user environment isn’t loaded. In that case, I need to pass the --color option to ls. Even so, programs like Neovim fail because the shell doesn’t behave as interactive and ANSI codes aren’t processed correctly.

Traceback in Go: How to Explore the Call Stack

crg@crg.eti.br (Cesar Gimenes) — Thu, 06 Feb 2025 02:12:46 -0300

Many programming languages provide some kind of “stack trace” or “backtrace”. Python has the traceback module, C on Linux offers the backtrace() function in execinfo.h (not part of the C standard), and Java includes Thread.dumpStack() or e.printStackTrace() for exceptions.

Stack Trace in Go

Go provides the runtime.Caller function to get information about the call stack. The following example prints the file, line, and function that called info(). Note that the argument 1 passed to runtime.Caller means we want information about the function that called info():

Desenvolvimento on Cesar Gimenes

Running Remote Commands Interactively with SSH

Traceback in Go: How to Explore the Call Stack

Stack Trace in Go