Caller Returns the context of any active subroutine call (a shell function or a script executed with the . or source builtins). caller displays the line number and source filename of the current subroutine call. If a non-negative integer is supplied as expr, caller displays the line number, subroutine name, and source file corresponding to that position in the current execution call stack. This extra information may be used, for example, to print a stack trace.
Below is simple bash script which demonstrate the usage of caller ...
feel free to copy and use this code
Source: cat caller.sh
#!/bin/bash
foo() {
caller 0
echo "In function: foo"
}
echo "Outside of the function"
goo() {
echo "In function: goo"
foo
}
goo
Output: ./caller.sh
Outside of the function
In function: goo
13 goo ./caller.sh
In function: foo
Below is simple bash script which demonstrate the usage of caller ...
feel free to copy and use this code
Source: cat caller.sh
#!/bin/bash
foo() {
caller 0
echo "In function: foo"
}
echo "Outside of the function"
goo() {
echo "In function: goo"
foo
}
goo
Output: ./caller.sh
Outside of the function
In function: goo
13 goo ./caller.sh
In function: foo
source:http://linuxpoison.blogspot.com/2012/09/13578167758569.html