Stack traces in bash

lib.sh

#!/bin/bash

function stacktrace() {
    frame=0
    while caller $frame ; do frame=$((frame + 1)) ; done
}

function lib_inner() {
    stacktrace
}

function lib_outer() {
    lib_inner
}

out.log

$ ./test.sh 
9 lib_inner ./lib.sh
13 lib_outer ./lib.sh
8 inner ./test.sh
12 outer ./test.sh
15 main ./test.sh

stacktrace.sh

function stacktrace() {
    frame=0
    while caller $frame ; do frame=$((frame + 1)) ; done
}

test.sh

#!/bin/bash

dir=`dirname $0`
. $dir/lib.sh


function inner() {
    lib_outer
}

function outer() {
    inner
}

outer

This makes less sense in alphabetical order.

• stacktrace.sh is the function to re-use
• test.sh and lib.sh are test scripts; out.log shows what you see when you run test.sh