CODEWITHSUNDEEP
bashshell
Michele Frau
Michele Frau

Reputation: 1

How to "read" in bash without pressing enter

I've done a shell (bash) script that applies predefined rules to files dropped into the terminal.

It works quite well but because it uses 'read' it requires to press Enter once the files are dropped to the term window

This is part of the current code

    while true ; do
        echo "Drop file(s) here then press [ENTER]:"
        echo "( x,q or exit,quit )"
        read -p "> " read_file
        while read dropped_file ;do
            if [ -e ${dropped_file} ] ; then
                ...bunch of code here...
            else
                [[ "${dropped_file}" == *[xXqQ]* ]] && exit 1
            fi
        done <<< $(echo ${read_file} | tr " " "\n")
        clear
    done

I'd like to omit to press Enter each time I drop files and I was wondering if there is some wizardry to avoid to interact with the keyboard, except when I want to quit the script

Any help would be appreciated

Thanks in advance

Upvotes: 0

Views: 855

Answers (2)

Shaqil Ismail
Shaqil Ismail

Reputation: 1979

I think you can use the yes, printf, or the expect command and use the \n key, which should be able to perform what you are looking for.

Upvotes: -1

Michele Frau
Michele Frau

Reputation: 1

EDIT

I've solved with this

while true ; do
    read -sn1 read_file
    while read splitted_filename; do
    dropped_file="${dropped_file}${splitted_filename}"
    done <<< $(echo ${read_file})
    functionAction
    [[ "${dropped_file}" == [xXqQ] ]] && exit 1
done

Upvotes: 0

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