12-28-2019
Because it is a an arithmetic operation (you are trying to divide a number by 60)
Therefore you need an arithmetic expansion ( see:
Shell command language: arithmetic expansions )
so you can assign the result of the arithmetic expression to a variable (assignment means
variable=value)
If you do not do that, in your example
AnzahlUeberstunden=$AnzahlUeberstunden/60 what happens is that you assign the value of AnzahlUeberstunden concatenated with the text string
/60, so the result becomes
2040/60.
--
My second suggestion is called an arithmetic expression (which can be used in shells like ksh93, bash, zsh) in which variables can be modified without an explicit variable assignment.
Last edited by Scrutinizer; 12-28-2019 at 03:15 AM..
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