Shell

A simple shell implemented in cpp.

I've only implemented a limited subset of functionality:

• cd to change directory
• | to pipe output of one command to another
• > to redirect output of one command to a file
• < to redirect input of one command to a file
• >> to append output of one command to a file
• & to run a command in the background. (fg to bring it back to the foreground not yet implemented)
• ~ expands to $HOME
• ctrl-c sends SIGINT to the child processes
• use " to escape spaces in arguments
• Quit with ^D.

Notable omissions:

• ; to run multiple commands in sequence
• && and || to run commands conditionally
• globbing
• * and ? expansion

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To compile

make compile

To run

build/shell