Bash正则表达式：Grep表示阵列循环中的'〜'和连字符' - '

Question

I'm trying to create an expect_commands bash function to check for a regex to be on a file:

function expect_commands 
{
        args_array=()
        for (( i = 2; i <= $#; i++ )); do
            args_array[i]=${!i}
            if grep -Fxqe "${args_array[$i]}" "$hist_file" || grep -Fxqe "${args_array[$i]}/" "$hist_file" || grep -Fxqe "${args_array[$i]} " "$hist_file" || grep -FxqE "${args_array[$i]}" "$hist_file"
            then
                response "$1" $COUNT
            else
                tell_error "$1" $COUNT
            fi
        done
}

The function is called with the following arguments:

expect_commands "remove entire ~/workspace/test-website/css directory" "rm -r test-website/css" "rm -r test-website/css/" "rm -Rf ~/workspace/test-website/css" "rm -rf ~/workspace/test-website/css" "rm -R ~/workspace/test-website/css"

Where argument $1 is the task. Arguments from $2 to the end are each of the possible combinations that the user may input to the terminal.

These inputs are saved into the ~/.bash_history file and evaluated from there with grep :

if grep -Fxqe "${args_array[$i]}" "$hist_file" || grep -Fxqe "${args_array[$i]}/" "$hist_file" || grep -Fxqe "${args_array[$i]} " "$hist_file" || grep -FxqE "${args_array[$i]}" "$hist_file"

The function passes with inputs like:

rm -r test-website/css rm -r test-website/css/

But when it comes to:

rm -Rf ~/workspace/test-website/css rm -rf ~/workspace/test-website/css rm -R ~/workspace/test-website/css

grep fails to match those lines.

Some of the errors I get sometimes are:

When adding the -FxqE option: grep: conflicting matchers specified

Any ideas?

Answer 1

Your function can be simplified: why do you need an array to hold the arguments?

function expect_commands {
    local label=$1
    shift
    for arg do
        arg=$( sed "s/ ~/ $HOME/g" <<< "$arg" )    # translate ~ to $HOME
        if grep -Fxq -e "$arg" -e "$arg/" -e "$arg " "$HISTFILE"
        then
            response "$label" $COUNT
        else
            tell_error "$label" $COUNT
        fi
    done
}

What is $COUNT ? Avoid global variables.