The shell is unix's command-line interface. You can type commands in a shell interactively, or write scripts to automate tasks. Use this tag for questions applying to /bin/sh and most compatible shells (ash, bash, ksh, zsh, …).

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Identify alias for the command typed

Is there any shell/shellscript which identifies that there is already an alias for the command I have typed on the command line. Eg On shell I type git checkout master Shell prints "You can use ...