Execute while loop Post: 302278428

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LEARN ABOUT OSF1

false

true(1) 						      General Commands Manual							   true(1)

NAME

       true, false - Returns a standard exit value

SYNOPSIS

       true

       false

STANDARDS

       Interfaces documented on this reference page conform to industry standards as follows:

       true:  XCU5.0

       false:  XCU5.0

       Refer to the standards(5) reference page for more information about industry standards and associated tags.

DESCRIPTION

       The true command returns a 0 (zero) exit value. The false command returns a nonzero exit value. These commands are usually used in input to
       shell commands.

NOTES

       The special built-in utility : (colon) is sometimes more efficient than the true command.

EXIT STATUS

       [Tru64 UNIX]  The nonzero value returned by the false command may vary from system to system.

EXAMPLES

       To construct a loop in a shell procedure, enter: while true do	   date      sleep 60 done

       This procedure displays the date and time once a minute.  To stop it, press the Interrupt key sequence.

SEE ALSO

       Commands:  csh(1), ksh(1), Bourne Shell sh(1b), POSIX shell sh(1p)

       Standards:  standards(5)

																	   true(1)

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loop does not execute in bash script?

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how to execute a while loop for 20 minutes?

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