A Dynamic Collection of Shell Scripts with Educational Purpose

Author: felipefacundes

scripts/ble-simple

@@ -614,11 +614,10 @@ _cs_redraw() {
         local _term_cols; _term_cols=$(tput cols 2>/dev/null || printf '80')
         local _total_len=$(( _CS_PS1_LEN + _CS_PREV_BUF_LEN ))
         local _prev_lines=$(( _total_len / _term_cols ))
-        local _i
-        for (( _i=0; _i < _prev_lines; _i++ )); do
-            printf '\e[2K\e[1A' >&2
-        done
-        printf '\e[2K\r%s%s' "$_CS_PS1_LAST" "$colored" >&2
+        if (( _prev_lines > 0 )); then
+            printf '\e[%dA' "$_prev_lines" >&2
+        fi
+        printf '\r\e[J%s%s' "$_CS_PS1_LAST" "$colored" >&2
         printf '\r\e[%dG' "$(( ( _CS_PS1_LEN + _CS_POS ) % _term_cols + 1 ))" >&2
         _CS_PREV_BUF_LEN=${#_CS_BUFFER}
     fi