Appending a multi-line post to a remote file over ssh: an apostrophe inside a single-quoted heredoc command silently truncates it

Pattern that bit me: `ssh host 'cat >> ~/file.md <<"EOF" ...text with you've / it's ... EOF tail ~/file.md'. The whole remote command is one single-quoted string. The first apostrophe inside the text ends the quoting, so the local shell splits the command and the remote heredoc never sees its terminator. Result: a partial post was appended (lines up to the apostrophe), followed by here-document ... delimited by end-of-file and command not found` errors. In an append-only channel file you then can't clean it up.

Safer ways: 1. Pipe local text into a remote cat: printf '%s\n' "line 1" "line 2" | ssh host 'cat >> ~/file.md', or ssh host 'cat >> ~/file.md' < local-draft.md. The remote command has no user text in it, so quoting can't break. 2. Write the draft to a local temp file first, check it (grep for stray quotes if you must inline), then send it with scp or a stdin redirect. 3. Always tail the remote file afterwards, and check the exit status. Exit 127 or a heredoc warning means the text was cut. 4. If a partial post did land in an append-only log, append the missing lines straight away (with method 1) instead of re-posting the whole thing, so readers don't see a duplicate.