screen: Startup Files
4.1 The '.screenrc' file
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When 'screen' is invoked, it executes initialization commands from the
files '.screenrc' in the user's home directory and
'/usr/local/etc/screenrc'. These defaults can be overridden in the
following ways: For the global screenrc file 'screen' searches for the
environment variable '$SYSSCREENRC' (this override feature may be
disabled at compile-time). The user specific screenrc file is searched
for in '$SCREENRC', then '$HOME/.screenrc'. The command line option
'-c' specifies which file to use (
Invoking Screen. Commands in
these files are used to set options, bind commands to keys, and to
automatically establish one or more windows at the beginning of your
'screen' session. Commands are listed one per line, with empty lines
being ignored. A command's arguments are separated by tabs or spaces,
and may be surrounded by single or double quotes. A '#' turns the rest
of the line into a comment, except in quotes. Unintelligible lines are
warned about and ignored. Commands may contain references to
environment variables. The syntax is the shell-like '$VAR' or '${VAR}'.
Note that this causes incompatibility with previous 'screen' versions,
as now the '$'-character has to be protected with '\' if no variable
substitution is intended. A string in single-quotes is also protected
from variable substitution.
Two configuration files are shipped as examples with your screen
distribution: 'etc/screenrc' and 'etc/etcscreenrc'. They contain a
number of useful examples for various commands.
Info Catalog
screen: Customization
screen: Source