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clarity

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edited Nov 13, 2018 at 10:39

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I have written a one-liner bash script(bright.sh) to manually adjust the display brightness.

Here I take the brightness value from the terminal and pass it as an argument to the echo command. But on running the script, I get an I/O error as follows:

sh: echo: I/O error

What do I do in order to pass the argument successfully from the terminal and control the brightness manually? An example usage might look like:

./bright.sh 230

I have written a one-liner bash script(bright.sh) to manually adjust the brightness.

Here I take the brightness value from the terminal and pass it as an argument to the echo command. But on running the script, I get an I/O error as follows:

sh: echo: I/O error

What do I do in order to pass the argument successfully from the terminal and control the brightness manually? An example usage might look like:

./bright.sh 230

I have written a one-liner bash script(bright.sh) to manually adjust the display brightness.

Here I take the brightness value from the terminal and pass it as an argument to the echo command. But on running the script, I get an I/O error as follows:

sh: echo: I/O error

What do I do in order to pass the argument successfully from the terminal and control the brightness manually? An example usage might look like:

./bright.sh 230

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asked Nov 13, 2018 at 10:28

ba11b0y

I/O error when passing command line argument to a shell script

I have written a one-liner bash script(bright.sh) to manually adjust the brightness.

Here I take the brightness value from the terminal and pass it as an argument to the echo command. But on running the script, I get an I/O error as follows:

sh: echo: I/O error

What do I do in order to pass the argument successfully from the terminal and control the brightness manually? An example usage might look like:

./bright.sh 230

shell-script