Sebiee

cd() {
  builtin cd "$@" || return
  (
    set +m;
    if [ -d '.git' ]; then
    o=$(git fetch origin 2>&1) &&
    [ -n "$o" ] && printf '\e[1A\e[2K\e[1A\e[2K' &&
    echo -e "$o" &&
    echo -e "\033[01;32m\n@@@@@@@@" &&
    echo -e "@ There were changes since last time you were here. Please merge\!" &&

Sebiee

myfile=test.txt &&

# Identify the starting and ending line of the block you want to replace
replace_this_start=$(grep -n 'STARTLINE_OF_STRING_THAT_NEEDS_REPLACEMENT' \
  ${myfile} | awk -F':' '{ print $1 }') &&
replace_this_stop=$(grep -n 'ENDLINE_OF_STRING_THAT_NEEDS_REPLACEMENTt' \
  ${myfile} | awk -F':' '{ print $1 }') &&
  
(
  head -n${replace_this_start} ${myfile} &&