Setting an alias when double quotes and single quotes both fail

Question

This question is not a duplicate of Why alias behave different than running bash command directly? because I have tried that solution and it hasn't worked. I replaced all my single quotes with double quotes and vice-versa. The command works neither way.

I am trying to implement an alias, sys, that will open a file I keep track of changes to my system in, sys.md, append a date, yank that line, paste the line, replace it with -'s for the markdown h2 format, open a new line, and insert a - for the markdown bullet format. From vi.stackexchange.com I received some help implementing the command. It works:

nvim +'$pu_|r!date' +'norm yypVr-o ' ~/notes/sys.md

When I replace the single quotes with double quotes the $pu_ is evaluated and I get

zsh: event not found: date

So the single quotes are important. However, when I implement the alias

alias sys="nvim +'$pu_|r!date' +'norm yypVr-o- ' ~/notes/sys.md"

The alias fails. nvim opens , but the date is appended to the second line and not the bottom. Clearly $pu_ is being evaluated as a variable from BASH. (nvim's syntax checker even shows it to be evaluated.) Inverting the doubles and singles to yield

alias sys='nvim +"$pu_|r!date" +"norm yypVr-o- " ~/notes/sys.md'

Has the same behavior. Backticks,

alias sys=`nvim +"$pu_|r!date" +"norm yypVr-o- " ~/notes/sys.md`

Freezes bash on source .zshrc. I don't know how to proceed. Any help would be greatly appreciated.

Answer 1

Just put it into a bash function (you can add the function to .bashrc):

sys() {
    nvim +'$pu_|r!date' +'norm yypVr-o ' ~/notes/sys.md
}

Then you can invoke it just like you would do this with an alias.

Answer 2

If your only problem is to understand how to have a single quote character inside a single quoted string, here is the method. Use:

'\''

for the single quote character inside the single quoted string.

This ends the current quoted string, then inserts a quoted quote and then starts a new quoted string.

BTW: since this is a frequent problem, bosh comes with a method to automate this conversion. You could fetch schilytools and compile them and then play with bosh. If you call:

set -o hashcmds
#b aliasname aliasreplacement

The value in aliasreplacement is entered in raw mode and if you later call:

alias aliasname

you see the alias in the correctly quoted form and if you enter

alias -R aliasname

you see the alias in raw mode.