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Top Forums Programming Global variable in for loop (BASH) Post 302884333 by shadyuk on Monday 20th of January 2014 05:18:19 AM
Old 01-20-2014
Sorry, that was just a typo. Even so, what you're suggesting doesn't solve the problem.

---------- Post updated at 05:18 AM ---------- Previous update was at 05:11 AM ----------

I'm not breaking the loop. My script is reading the GPS speed every 30s and if the speed is less than 10, i want whatever is within the subroutine (function) to stop. Once the speed exceeds 10, it will get going again. The problem is that the variable "pause" isn't being updated within the subroutine.#

I should add that I don't want to put the test itself within the function. I've simplified the code above on purpose and there's an additional component within the for loop that counts the number of times the speed is less than 10. So, the structure must remain intact.
 

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cfspeed(3C)															       cfspeed(3C)

NAME
cfgetospeed(), cfsetospeed(), cfgetispeed(), cfsetispeed() - tty baud rate functions SYNOPSIS
DESCRIPTION
These functions set and get the input and output speed codes in the termios structure referenced by termios_p. The termios structure con- tains these speed codes representing input and output baud rates as well as other terminal related parameters. Setting the parameters on a terminal file does not become effective until is successfully called. returns the output speed code from the termios structure referenced by termios_p. sets the output speed code in the termios structure referenced by termios_p to speed. The speed code for a baud rate of zero, is used to termi- nate the connection. If is specified, the modem control lines are no longer asserted, which normally discon- nects the line. returns the input speed code from the termios structure referenced by termios_p. sets the input speed code in the termios structure referenced by termios_p to speed. RETURN VALUE
returns the output speed code from the termios structure referenced by termios_p. returns the input speed code from the termios structure referenced by termios_p. and return zero upon successful completion. Otherwise, they return -1 and set to indicate the error. ERRORS
and fail when the following condition is encountered: [EINVAL] The value of speed is outside the range of possible speed codes as specified in WARNINGS
and can be used to set speed codes in the termios structure that are not supported by the terminal hardware. SEE ALSO
tcattribute(3C), thread_safety(5), termio(7). STANDARDS CONFORMANCE
cfspeed(3C)
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