Shell script Returning a value from a bash function Unix Linux
Shell script Returning a value from a bash function Unix Linux Stack Exchange Returning a value from a bash function Ask ion Asked 10 years 4 months ago Modified 6 years 10 months ago Viewed 133k times 11 I have a function which returns 1 if the number is a valid ten digit number
Returning Values from Bash Functions Linux Journal, The simplest way to return a value from a bash function is to just set a global variable to the result Since all variables in bash are global by default this is easy function myfunc myresult some value myfunc echo myresult The code above sets the global variable myresult to the function result
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1 return number from shell function function test1 some handling return 0 2 return string from shell function function test2 some handling echo data I have a case where I need to return both number and string from shell function 3 return number and string from shell function
Bash Function How to Use It Variables Arguments Return phoenixNAP, 1 The most widely used format is function name commands Alternatively the same function can be one line function name commands 2 The alternative way to write a bash function is using the reserved word function function function name commands
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Bash Functions Linuxize, A Bash function is essentially a set of commands that can be called numerous times The purpose of a function is to help you make your bash scripts more readable and to avoid writing the same code repeatedly Compared to most programming languages Bash functions are somewhat limited
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Bash Function Return Value LinuxOPsys
Bash Function Return Value LinuxOPsys Bash Function Return Value Written by Madhur Batra Last updated March 19 2023 Bash Scripting In Bash functions do not support returning values like in other programming languages Instead the return value of a function is its exit status a numeric value indicating success or failure
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Using Bash Functions to Get Return Values To get the return value of a bash function you can call the function and store the exit status in a variable Here s an example bin bash my function return 42 my variable my function echo echo my variable How to Use Bash Functions to Get Return Values in Linux. So if the function succeeds return 0 would likely be considered more right than return 1 As for set e set o errexit it doesn t trigger on just any command function e g it ignores those that are used as conditions or where the exit status is otherwise ignored like the non rightmost parts of a pipeline In bash a function can return values using the return statement The return statement is used to set the return status of the function which is an integer value between 0 and 255 Conventionally a return status of 0 indicates success while non zero values indicate failure or different error codes ADVERTISEMENT
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