In Bash, how to add “Are you sure [Y/n]” to any command or alias?

Question

In this particular case, I\'d like to add a confirm in Bash for

Are you sure? [Y/n]

for Mercurial\'s hg push ssh://username@www.example.com//some

Answer 1

This may be a hack:

as in question In Unix / Bash, is "xargs -p" a good way to prompt for confirmation before running any command?

we can using xargs to do the job:

echo ssh://username@www.example.com//somepath/morepath | xargs -p hg push

of course, this will be set as an alias, like hgpushrepo

Example:

$ echo foo | xargs -p ls -l
ls -l foo?...y
-rw-r--r--  1 mikelee    staff  0 Nov 23 10:38 foo

$ echo foo | xargs -p ls -l
ls -l foo?...n

$