15 lines
508 B
Bash
15 lines
508 B
Bash
#! zsh
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# umask should *never* be zero. If it is, set it to something safer.
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if (( $(umask) == 0 )); then
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# Test whether the system uses User Private Groups - if it does, my primary
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# group will have the same name as my user. Basic info on UPG can be found
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# here: https://security.ias.edu/how-and-why-user-private-groups-unix
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if [[ $(id -un) = $(id -gn) ]]; then
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# 002 is a safe umask if the system has UPG.
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umask 002
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else
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# 022 is a safe umask if the system does not have UPG.
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umask 022
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fi
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fi
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