Shell Programming and Scripting

Hi All

I have two shell scripts where the second is getting invoked from the first. E.g.

test1.sh and test2.sh Within test1, the code is something like this:

Code:

#!/bin/bash

. test2.sh

usage() {
  echo "..."
  echo "....."
}
SRC=$1
DEST=$2

case "$3" in
  tran) doTran ;;
   *) usage && exit 1 ;;
esac

and within test2.sh, the code looks like this:

Code:

#!/bin/bash

doTran() {
  src=(
    "sample1*.gz" 
    "sample2*.gz"
  )
  target=(
   "SAMPLE1.csv"
   "SAMPLE2.csv"
  )

  trigger "tran"
}

When the main script test1.sh is executed, it's throwing the below error:

Code:

test2.sh[3]: 0403-057 Syntax error at line 4 : `(' is not expected.

Please help

what flavor of unix you are trying this in

Am running this on AIX 5

I dont see any issues in test1.sh / test2.sh
I ran the above code as it is without any issues except I replaced trigger with echo

How do you execute test1.sh? If for example, you execute the script like

Code:

sh script1.sh

then you are bypassing the shebang on line one and script does not get executed with bash, but rather the default POSIX shell (/usr/bin/sh). If you want to use bash for that script, then you either need to make it executable with chmod and use:

Code:

/path/to/script1.sh

or if it is in your search path, you can use

Code:

script1.sh

you can also use:

Code:

bash script1.sh

Also If you created the files in windows, don't forget to change the line endings.
Easy way is

Code:

dos2unix file

That's right. I could reproduce what Scrutinizer said on my Linux as well.

When executed with sh it gave me an error because it bypasses the shebang.

But I came up with a question. Is there really a binary for sh in /usr/bin/sh in AIX? Because in Linux there's no executable or binary file for sh. sh is an internal behaviour of bash. The only executable of sh is a symbolic link to bash.

Another question, briefly, what are the = ( ) for?

Thanks.