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Table of Contents

Shell tricks

Sudo privilege escalation

if [ "$(id -u)" != 0]; then
    sudo "$0" "$*"
    exit $?
fi

Posix Documentation

https://pubs.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html

Parameter expansion

Section 2.6.2 of the documentation
Expansion can differ depending on parameter value and set status and possibly assign. Substitution can also provide string length and prefix/suffix patterns.

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tricks/shell.1613879782.txt.gz · Last modified: 2023/05/30 22:32 (external edit)