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How do I determine if a shell script is running with root permissions?

shell permissions sudo

What is the difference between alias and export (and a function!)[BASH]?

bash shell command zsh apropos

os.environ not setting environment variables [duplicate]

Check if string is UUID

bash shell uuid

How do you use shell script variables as arguments to sed?

Bash's equivalent of Tcsh's ESC-p to jump to command starting with what you typed so far

Default values to a unix shell script?

linux unix shell scripting

Copy/Paste part of a file into another file using Terminal (or Shell)

Shell: read a file and echo it's contents to another file

shell

How to remove newline from output?

shell

What does <() do in Bash?

getopts won't call twice in a row? [duplicate]

bash shell getopts

Erlang shell pretty print depth

shell erlang

How to use SED without a file with an env var?

Recommendation - Zsh vs FishShell. Scripting, productivity and poweruser perse [closed]

bash shell zsh fish

How to gently kill Firefox process on Linux/OS X

linux macos bash shell firefox

bash removing part of a file name

bash shell sed rename mv

Redirecting stderr in csh

linux shell csh tcsh

Specify which shell Yarn uses for running scripts

node.js bash shell sh yarnpkg

Bash conditional based on exit code of command