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The problem is that when watch is executed it runs sh and I get this error:

sh: 1: func1: not found

here is the code:

#!/bin/bash

func1(){
  echo $1
}

export -f func1

watch func1
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Can you give what command you actually run? –  Gnouc Jul 13 at 18:38
    
@Gnouc instead of echo $1 i have a bit long script so i don't know .. –  Rachid O. Jul 13 at 18:42
    
I mean how did you run your ssh command? –  Gnouc Jul 13 at 18:45
    
@Gnouc ./bin/myfunc.sh –  Rachid O. Jul 13 at 19:00
    

2 Answers 2

up vote 4 down vote accepted

Ok, so there are a few issues with your approach.

You are exporting a function, which is not portable between shells. watch executes its commands with /bin/sh, which on your system is not bash. And whatever shell it is, it doesn't respect function exports, so you get the error.

Secondly, you can change your command to something like watch bash -c 'func1', but this may not work well either.
The reason here being that any variables set by the script won't be available to the function. You might be able to export the ones it needs, but that starts getting messy.

The safest solution is to put func1 in a script by itself and call that script.
 

In short, try:

watch bash -c func1
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Why run watch from inside your script? Why not have this shell script:

$ cat func1 
#!/bin/bash

func1(){
  echo $1
}

func1 $1

... and then run it like so ...

$ watch func1 foo
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