I recently tried to directly execute the commands present in the README.md file of my projects. 2 This way of functioning has indeed a double advantage:

  • Avoiding data redundancy
  • Constant updating of the last orders

I also tried to be able to directly select and execute extracted commands thanks to the excellent plug-in [fzf] (https://github.com/junegunn/fzf). The goal was to make the simplest, using if possible the tools provided by GNU core utilities. Here is the solution I arrived at:

    LINES=$(sed '/^```$/,/^```$/{//!b};d' README.md 2>&1); 
    if [ $? -eq 2 ]; then echo "README.md not found"; return; fi
    if [ $? -ne 0 ]; then echo "$LINES"; return; fi
    COMMAND=$(echo "$LINES" | fzf -i);
    if [ $? -ne 0 ]; then return; fi
    # Stripping trailing spaces
    COMMAND=$(echo -e "${COMMAND}" | sed -e 's/^[[:space:]]*//')
    echo -n $COMMAND | xclip -selection c -i ; 
    history -s "$COMMAND"; 
    echo "$COMMAND"; 
    eval $COMMAND

Note that the last line simply assigns the function to an alias.

Just put this block of code in a file read at launch terminal (.bashrc for example) to enjoy it.