Re: Proposal to add /usr/bin/shquote

[David Laight <david%l8s.co.uk@localhost>]

On Sat, Sep 06, 2008 at 05:06:55PM +0200, Alan Barrett wrote:
> 
> However, it requires the save_args function to be cut and pasted into
> every script that wants it (or made available via a library of shell
> functions).

Easier than getting an extra executuble into $PATH :-)

>       ssh_cmd="$( shquote ssh user@host "$remote_cmd" )"

ssh is a bad example, I suspect everything needs quoting twice, once
for the local system and once for the remote one!

So, process each arg and replace every ' with '"'"' and insert inside '.
Something like:

save_args() {
        local a n v IFS;
        v=; n=$1; shift
        for a; do
                v="$v '"
                IFS="'"; set -- $a; IFS=
                while [ $# -gt 1 ]; do
                        v="$v$1'"'"'"'"'"'"'"
                        shift;
                done
                v="$v$1'"
        done
        eval $n=\"\$v\"
}

        David

-- 
David Laight: david%l8s.co.uk@localhost