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1.1 ! root 1: .\" @(#)true.1 6.1 (Berkeley) 4/29/85 ! 2: .\" ! 3: .TH TRUE 1 "April 29, 1985" ! 4: .AT 3 ! 5: .SH NAME ! 6: true, false \- provide truth values ! 7: .SH SYNOPSIS ! 8: .B true ! 9: .PP ! 10: .B false ! 11: .SH DESCRIPTION ! 12: .I True ! 13: and ! 14: .I false ! 15: are usually used in a Bourne shell script. ! 16: They test for the appropriate status "true" or "false" before running ! 17: (or failing to run) a list of commands. ! 18: .SH EXAMPLE ! 19: .IP ! 20: .nf ! 21: while true ! 22: do ! 23: command list ! 24: done ! 25: .SH "SEE ALSO" ! 26: csh(1), ! 27: sh(1), ! 28: false(1) ! 29: .SH DIAGNOSTICS ! 30: .I True ! 31: has exit status zero.
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