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avatar Ubuntu

bash: set command: enable the options by overwriting the previous ones

it flag
Mario Palumbo

Pretending that the output of $- is this:

hims

If I add options with the set command:

set -B

the output of $- becomes this:

himBs

but I would like it to become this:

iBs

So that it overwrites the previous options.

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avatar Ubuntu
tm flag
choroba

You can create the following function to do what you want:

myset () {
    options=$-
    options=${options//[is]}  # remove "i" and "s"
    set +"$options"
    set -"$1"
}

And call

myset B
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it flag
Mario Palumbo
Yes, ok, after I thought about it but the fact remains that in addition to the options `i` and `s` there are others not to be removed (because it would give an error), for example one of them is option `c`.
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it flag
Mario Palumbo
The ideal choice would be to tell the `set` command to ignore the nonexistent options, while working on the others anyway. Is there a switch to do this?
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tm flag
choroba
No, there's no such option.
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