Bash: Syntax error: redirection unexpected

Question

I do this in a script:

read direc <<< $(basename `pwd`)

and I get:

Syntax error: redirection unexpected


        

Answer 1

Before running the script, you should check first line of the shell script for the interpreter.

Eg: if scripts starts with /bin/bash , run the script using the below command "bash script_name.sh"

if script starts with /bin/sh, run the script using the below command "sh script_name.sh"

./sample.sh - This will detect the interpreter from the first line of the script and run.

Different Linux distributions having different shells as default.

Answer 2

do it the simpler way,

direc=$(basename `pwd`)

Or use the shell

$ direc=${PWD##*/}

Answer 3

If you're using the following to run your script:

sudo sh ./script.sh

Then you'll want to use the following instead:

sudo bash ./script.sh

The reason for this is that Bash is not the default shell for Ubuntu. So, if you use "sh" then it will just use the default shell; which is actually Dash. This will happen regardless if you have #!/bin/bash at the top of your script. As a result, you will need to explicitly specify to use bash as shown above, and your script should run at expected.

Dash doesn't support redirects the same as Bash.