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112efa81f2
`(exit N); exit N'. Otherwise, those many tests could exit with improper exit status when exiting via e.g., a trapped interrupt. Thanks to a report from Bob Proulx.
11 lines
378 B
Plaintext
11 lines
378 B
Plaintext
# Require a controlling input `terminal'.
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tty -s || have_input_tty=no
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test -t 1 || have_input_tty=no
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if test "$have_input_tty" = no; then
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echo "$0: This test must have a controlling input \`terminal'," 1>&2
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echo " so it may not be run via \`batch', \`at', or \`rsh'." 1>&2
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echo " On some systems, it may not even be run in the background." 1>&2
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(exit 77); exit 77
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fi
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