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91 lines
2.4 KiB
Plaintext
91 lines
2.4 KiB
Plaintext
Environment variables
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CALCPATH
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A :-separated list of directories used to search for
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scripts filenames that do not begin with /, ./ or ~.
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If this variable does not exist, a compiled value
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is used. Typically compiled in value is:
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.:./lib:~/lib:${LIBDIR}/calc:${LIBDIR}/custom
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where ${LIBDIR} is usually:
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/usr/local/lib/calc
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This value is used by the READ command. It is an error
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if no such readable file is found.
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The CALCBINDINGS file searches the CALCPATH as well.
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CALCRC
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On startup (unless -h or -q was given on the command
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line), calc searches for files along the :-separated
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$CALCRC environment variable.
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If this variable does not exist, a compiled value
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is used. Typically compiled in value is:
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${LIBDIR}/startup:~/.calcrc
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where ${LIBDIR} is usually:
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/usr/local/lib/calc
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Missing files along the $CALCRC path are silently ignored.
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CALCBINDINGS
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On startup (unless -h or -q was given on the command
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line), calc reads key bindings from the filename specified
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in the $CALCRC environment variable. These key bindings
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are used for command line editing and the command history.
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If this variable does not exist, a compiled value is used.
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Typically compiled in value is:
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bindings
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or:
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altbind (bindings where ^D means exit)
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The bindings file is searched along the CALCPATH. Unlike
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the READ command, a .cal extension is not added.
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If the file could not be opened, or if standard input is not
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a terminal, then calc will still run, but fancy command line
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editing is disabled.
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NOTE: If calc was compiled with GNU-readline support, the
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CALCBINDINGS facility is ignored and the standard
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readline mechanisms (see readline(3)) are used.
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HOME
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This value is taken to be the home directory of the
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current user. It is used when files begin with '~/'.
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If this variable does not exist, the home directory password
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entry of the current user is used. If that information
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is not available, '.' is used.
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PAGER
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When invoking help, this environment variable is used
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to display a help file.
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If this variable does not exist, a compiled value
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is used. Typically compiled in value is something
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such as 'more', 'less', 'pg' or 'cat'.
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SHELL
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When a !-command is used, the program indicated by
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this environment variable is used.
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If this variable does not exist, a compiled value
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is used. Typically compiled in value is something
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such as 'sh' is used.
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