Question

#!/bin/bash

if [ -z "$1" ]
  then
    echo "No argument supplied"
    exit
fi

if [ "$1"="abc" ] ; then
abc
exit
fi

if [ "$1" = "def" ]; then
def
exit 1
fi

function abc()
{
    echo "hello"
}

function def()
{
    echo "hi"
}

Here abc is a function which has local definition. But Bash is giving error “./xyz.sh: line 10: abc: command not found”. Please give me any Solution?

Answer 1

All functions must be declared before they can be used, so move your declarations to the top.

Also, you need to have a space on either side of the = in your string comparison test.

The following script should work:

#!/bin/bash

function abc()
{
    echo "hello"
}

function def()
{
    echo "hi"
}

if [ -z "$1" ]
  then
    echo "No argument supplied"
    exit
fi

if [ "$1" = "abc" ] ; then
   abc
   exit
fi

if [ "$1" = "def" ]; then
   def
   exit 1
fi