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Return Code Bash


Use echo as suggested by @septi. Why do shampoo ingredient labels feature the the term "Aqua"? Why does the U-2 use a chase car when landing? Compactness of the open and closed unit intervals more hot questions question feed lang-sh about us tour help blog chat data legal privacy policy work here advertising info mobile contact us weblink

So functions are used as if they were binaries or scripts fetched from your path. If you look at exit codes in the context of scripts written to be used for the command line the answer is very simple. He has been working with Linux and Unix for over 10 years now and has recently published his first book; Red Hat Enterprise Linux Troubleshooting Guide. more hot questions question feed lang-sh about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation

Bash If Exit Code

Is it rude to use tracking softwares for the emails that you send to potential advisors? How to make use of Devel debugging functions on large or complex objects Should we kill the features that users are not using frequently, to improve performance? Also, could anyone tell me about the description of those errors.Thanks, Thayananth Reply Link Rahul Jawale December 17, 2012, 11:55 amYou are doing good work. Ending a script with exit 127 would certainly cause confusion when troubleshooting (is the error code a "command not found" or a user-defined one?).

share|improve this answer answered Jul 10 '13 at 14:30 choroba 111k1096155 Please take a look on my edit. –Patryk Jul 10 '13 at 15:12 @Patryk: Note that echo $res } Also note that you can use the return value to use boolean logic like fun1 || fun2 will only run fun2 if fun1 returns a 0 value. Interview for postdoc position via Skype Detect MS Windows How did Adebisi make his hat hang on his head? Last Exit Code Destiny Follow him on Twitter.

This would allot 50 valid codes, and make troubleshooting scripts more straightforward. [2] All user-defined exit codes in the accompanying examples to this document conform to this standard, except Edit: Your script works only for one-word commands, like ls. variable in bash Related 3035Getting the Current/Present working directory of a Bash script from within the script1069Check if a program exists from a Bash script1092How do I split a string on Where I made mistake?

Parallely, the function would "return" the exit code of gpg (GnuPG). Exit Code 0 Is it possible to set a composite NOT NULL constraint in PostgreSQL How do you convince someone that parallel lines can touch? For example, you can return a BLOB easily: encrypt() { gpg -c -o- $1 # encrypt data in filename to stdout (asks for a passphrase) } encrypt public.dat > private.dat # How did Adebisi make his hat hang on his head?

Bash If Exit Code Not 0

share|improve this answer edited Aug 19 '15 at 17:25 rogerdpack 23.5k1397147 answered Jun 27 '13 at 7:19 tamasgal 9,16474389 2 You need to execute fun1 and then the return value I know only 0 for successful. Bash If Exit Code From the perspective of your program logic there should be really no difference. Bash Set Exit Code It could occur on the man-page, or the --help output of the command, but both are only human-readable and hence are written to the wind.

Please note that these parameters or variables may only be referenced assignment to them is not allowed. http://blackplanetsupport.com/exit-code/bash-test-return-code.html fun1 (){ return 34 } fun2 (){ fun1 local res=$? Read man page to find out meaning of return status 1 and 8. You can use it as it is global. Bash Script Exit On Error

I'm not sure why people insist on storing commands in variables before executing them; it just created limitations like this. –Gordon Davisson Nov 22 '11 at 7:10 | show 1 more Privacy - Terms of Service - Questions or Comments current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. It’s the idea of unix-programming: echo sends the results to standard output which then can be reused by other functions with res=$(fun1) - or directly be piped to other functions: function http://blackplanetsupport.com/exit-code/bash-return-code.html But ssh worked.

you can use typeset cmnd="$*" instead of typeset cmnd="$1" if you want to keep the spaces. Exit Bash Shell Advanced Bash-Scripting Guide: PrevNext

Appendix E. Execution: $ ./tmp.sh Could not create file Providing your own exit code While the above revision will provide an error message if the touch command fails, it still provides a 0

So I am going to change $command to $cmnd (the local variable.. –havexz Nov 23 '11 at 16:25 Thanks @havexz.

How to say "to master Esperanto"? Word for disproportionate punishment? Hot Network Questions Why do CDs and DVDs fill up from the centre outwards? Exit Code -1073741819 Python Think of fun1 || fun2 as shorthand for "if fun1 returns success or fun2 returns success" rather than an operator on the actual return values themselves. –meowsqueak Mar 30 '16 at

The author of this document will not do fixups on the scripting examples to conform to the changing standard. Reply Link M P November 9, 2010, 1:23 pmVery helpful. Was the London Blitz accidentally started by lost pilots? this content Reserved Exit Codes

Exit Code NumberMeaningExampleComments1Catchall for general errorslet "var1 = 1/0"Miscellaneous errors, such as "divide by zero"

Anagram puzzle whose solution is guaranteed to make you laugh "How are you spending your time on the computer?" Does every data type just boil down to nodes with pointers? How to remove blank page caused by long list tabular What do you call this alternating melodic pattern? bash return-value share|improve this question edited Oct 27 '15 at 16:09 CJBS 5,77033465 asked Jun 27 '13 at 7:17 mindia 65921017 3 return in your case is essentially the same An exit value greater than 255 returns an exit code modulo 256.

Browse other questions tagged bash return-value or ask your own question. The command itself failed.