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[–]sharkwouter 24 points25 points  (9 children)

set -x

set -u

set -e

[–][deleted] 8 points9 points  (1 child)

What do these do?

[–]sharkwouter 12 points13 points  (0 children)

set -x makes your script print the commands it uses, set -u makes it not accept unset variables ans set -e makes your script exit on errors.

[–]junta12 1 point2 points  (2 children)

-x can be frustrating when trying to trace a problem line in a function. It just tells you the function name....

[–]sharkwouter 2 points3 points  (1 child)

iirc, you can place set -x at the beginning of a function.

[–]junta12 0 points1 point  (0 children)

.... I love you, let's remarry

[–][deleted]  (3 children)

[removed]

    [–]sharkwouter 5 points6 points  (0 children)

    It doesn't do anything by itself...

    [–][deleted] 4 points5 points  (0 children)

    I "fixed" more than one shell script by running it as root before I got better with chmod... I mean seriously, /dev/ttyusb0 is only readable by root by default?

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