This contains basic shell environment files with my preferred settings for PS1 (prompt), functions, etc.
These are typically versioned in a subdir of the home directory, e.g. ~/p4/pub/tom_tyler/home. Then the hidden files in this directory (those with a filename starting with a '.', i.e. everything except this ReadMe file) are symlinks from ~/.
There may also be a ~/.bashrc.local file that is not versioned here. This is expected to contain aliases and such that have only local meaning and aren't worth versioning, e.g. quick 'cd' aliases to paths that vary on different machines.