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# ARB environment variables

- OCCURRENCE
- DESCRIPTION
- NOTES
- EXAMPLES
- WARNINGS
- BUGS

## OCCURRENCE

### Anywhere

## DESCRIPTION

### Arb is aware of several environment variables:

ARBHOME
Should be set to the arb install directory (usually /usr/arb)
LD_LIBRARY_PATH
path to system libraries (should contain $ARBHOME/lib (i.e. /usr/arb/lib if $ARBHOME is /usr/arb)). Set by the 'arb' script.
ARB_TEXTEDIT
The name of the editor you like to use when editing textlike files via ARB (default is to autodetect using arb_textedit)
ARB_XTERM
The call which is needed to create a normal xterm (default: xterm -sl 1000 -sb -geometry 120x50 )
ARB_XCMD
The call which is needed to create a xterm invoking external programs (default: $ARB_XTERM -e ).
USER
your username (normally set by shell).
PRINTER
if PRINTER is defined, it may contain the name of your printer. ARB will then automatically use it in the printer command.
ARB_PID
internal PID for communication (set by the 'arb' script)
ARBMACRO
directory name where global ARB-macros may be provides by system administrator (default: $ARBHOME/lib/macros )
ARB_PROP
directory name where your local ARB-properties will be saved to/loaded from (default: $HOME/.arb_prop ). Allows to use different ARB configurations in the same user account.
ARBMACROHOME
directory name where your local ARB-macros will be saved to/loaded from (default: $ARB_PROP/macros )
ARBCONFIG
directory name where your local ARB-configs will be saved to/loaded from (default: $ARB_PROP/cfgSave )
ARB_GS
name of postscript viewer used by ARB (default: 'gv' or 'ghostview')
ARB_PDFVIEW
name of pdf viewer used by ARB (default: 'epdfview' or 'acroread' or 'gv')
ARB_WORKDIR
extra directory appearing in ARB-File-Browsers (default: none)
ARB_DOC
directory where ARB searches for *.ps, *.ps.gz, *.pdf and *.pdf.gz (default: $ARBHOME/lib/help)
ARB_HTMLDOC
directory where ARB searches for *.html help files (default: $ARBHOME/lib/help_html)

## NOTES

### Short description of how to set an environment variable:

1. for bash users (add to .bashrc):

       ARB_GS='my_special_postscript_viewer'
       export  ARB_GS

2. for tcsh users (add to .cshrc):
   setenv ARB_GS 'my_special_postscript_viewer'

## EXAMPLES

### None

## WARNINGS

### None

## BUGS

### No bugs known