Linux command [read]

read command

Read from standard input. One line is read from the standard input and the read contents are stored in the shell variable.



read -p 'Please enter the file name' fh
echo $fh

-p: Set user input information as standard input fh: Arbitrary variable name Standard input information is stored here $ fh: Display stored user input information

Execution result

$ ./
Please enter a file name Hello World
Hello World

Example of use

Reads the contents of the file string.txt and outputs it to standard output.

Contents of job definition script

Example of use

while read LINE
 echo "$LINE"
done     < string.txt

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