this post was submitted on 03 May 2024
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I am tired of creating a file with nano, saving it and then making it executable. Is there a command that makes it in one step?

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[–] [email protected] 72 points 6 months ago (1 children)

You mean like

touch file && chmod +x file ?

[–] [email protected] 18 points 6 months ago

Wrap it up folks, we're done here.

[–] CameronDev 38 points 6 months ago* (last edited 6 months ago) (1 children)

Write an alias/function to do it and add to your bashrc.

function nanox() {
    nano "$1"
    chmod +x "$1"
}
[–] [email protected] 0 points 6 months ago

This is the way.

[–] [email protected] 17 points 6 months ago* (last edited 6 months ago) (2 children)

You want the install command.

install

At least, I think this will do it. I haven’t used it in a while.

[–] [email protected] 6 points 6 months ago (1 children)

touch file && chmod +x file is good but this here is the one true command for the purpose.

[–] [email protected] 2 points 6 months ago (1 children)

install -m755 /dev/null target was the first thing I thought of. I would never use this but it is a single command.

[–] [email protected] 1 points 6 months ago (1 children)

Why would you never use it?

[–] [email protected] 1 points 6 months ago

I'm going to write (at least part of) the script first anyway, and then I can just use chmod +x after the file is saved which is shorter.

[–] [email protected] 13 points 6 months ago

You could define a function that takes a parameter, which touches a file with the parameters value, chmods it and then opens it with nano?

create_exec() {
    touch "$1"
    chmod +x "$1"
    nano "$1"
}

Then you could type create_exec file.sh and it would do the rest for you.

[–] [email protected] 12 points 6 months ago

Here's one I have saved in my shell aliases.

nscript() {
    local name="${1:-nscript-$(printf '%s' $(echo "$RANDOM" | md5sum) | cut -c 1-10)}"
    echo -e "#!/usr/bin/env bash\n#set -Eeuxo pipefail\nset -e" > ./"$name".sh && chmod +x ./"$name".sh && hx ./"$name".sh
}
alias nsh='nscript'

Admittedly much more complicated than necessary, but it's pretty full featured. first line constructs a filename for the new script from a generated 10 character random hash and prepends "nscript" and a user provided name.

The second line writes out the shebang and a few oft used bash flags, makes the file executable and opens in in my editor (Helix in my case).

The third line is just a shortened alias for the function.

[–] [email protected] 7 points 6 months ago (2 children)

Use && to use multiple commands one after the other, don't use ;.

[–] [email protected] 18 points 6 months ago (1 children)

- && means execute if the command before ended successfully

- || means execute if the commnad before failed

- ; just means execute the command - no matter if succeeded or failed

[–] [email protected] 1 points 6 months ago

My dude, thanks for this. I've been using && for a long time now but never knew the rest, I'm still pretty new to linux comparatively.

[–] [email protected] 3 points 6 months ago

You could append the chmod command with && but that's probably not what you wanted.