Carlos Moro García Silcet

## bash_strict_mode.md

      
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                set -e, -u, -o, -x pipefail explanation
              
          
    Table of Contents


set -e, -u, -x, -o pipefail
set -e
set -x
set -u
set -o pipefail
Setting IFS
Original Reference

set -e, -u, -x, -o pipefail


## nixos-remove-old-generations
# nix-env -p /nix/var/nix/profiles/system --delete-generations old
# nix-collect-garbage -d
# nix-env -p /nix/var/nix/profiles/system --list-generations
## Remove entries from /boot/loader/entries:
# sudo bash -c "cd /boot/loader/entries; ls | grep -v <current-generation-name> | xargs rm"