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Misc

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Generate random string ​

shell
</dev/urandom tr -dc 'A-Za-z0-9!"#$%&'\''()*+,-./:;<=>?@[\]^_`{|}~' | head -c 16  ; echo

Bulk copy with renaming ​

shell
for file in ./*; do
  cp "${file##*/}" "/path/to/destination/m_${file##*/}"
done

Load .bashrc when using .bash_profile ​

shell
if [ -f ~/.bashrc ]; then
   source ~/.bashrc
fi