1 files changed, 96 insertions, 0 deletions
diff --git a/i3/blocks/bandwidth b/i3/blocks/bandwidth
new file mode 100755
index 0000000..f0b18cf
--- /dev/null
+++ b/i3/blocks/bandwidth
@@ -0,0 +1,96 @@
+#!/bin/bash
+# Source: http://www.onlamp.com/pub/a/linux/2000/11/16/LinuxAdmin.html
+
+INSTANCE="${BLOCK_INSTANCE}"
+
+if [[ "${INSTANCE}" = "" ]]; then
+  INSTANCE="wlp3s0;both"
+fi
+
+DISPLAY=$(echo "${INSTANCE}" | awk -F ';' '{print $2}')
+INSTANCE=$(echo "${INSTANCE}" | awk -F ';' '{print $1}')
+
+if [[ "${DISPLAY}" = "" ]]; then
+  DISPLAY="both"
+fi
+
+ONE_KB=1024
+ONE_MB=$(echo "${ONE_KB}*1024" | bc -l)
+TEN_MB=$(echo "${ONE_MB}*10" | bc -l)
+OHD_MB=$(echo "${TEN_MB}*10" | bc -l)
+
+URGENT_VALUE="${ONE_MB}"
+
+PREV_IN=0
+PREV_OUT=0
+
+PREV_FILE="/tmp/.bandwidth"
+
+if [[ -f "${PREV_FILE}" ]]; then
+  PREV_CONT=$(cat "${PREV_FILE}")
+  PREV_IN=$(echo "${PREV_CONT}" | head -n 1)
+  PREV_OUT=$(echo "${PREV_CONT}" | tail -n 1)
+fi
+
+BANDWIDTH=$(grep "${INSTANCE}" /proc/net/dev | awk -F: '{print  $2}' | awk '{print $1" "$9}')
+
+if [[ "${BANDWIDTH}" = "" ]]; then
+  exit
+fi
+
+BYTES_IN=$(echo "${BANDWIDTH}" | awk -F ' ' '{print $1}')
+BYTES_OUT=$(echo "${BANDWIDTH}" | awk -F ' ' '{print $2}')
+
+function FormatNumber() {
+  if [[ "${1}" -ge "${OHD_MB}" ]]; then
+    echo $(echo "scale=0;${1}/${ONE_MB}" | bc -l)"mb"
+  elif [[ "${1}" -ge "${TEN_MB}" ]]; then
+    echo $(echo "scale=1;${1}/${ONE_MB}" | bc -l)"mb"
+  elif [[ "${1}" -ge "${ONE_MB}" ]]; then
+    echo $(echo "scale=2;${1}/${ONE_MB}" | bc -l)"mb"
+  elif [[ "${1}" -ge "${ONE_KB}" ]]; then
+    echo $(echo "scale=0;${1}/${ONE_KB}" | bc -l)"kb"
+  else
+    echo "${1}""b"
+  fi
+}
+
+if [[ "${PREV_IN}" != "" ]] && [[ "${PREV_OUT}" != "" ]]; then
+  # Calculate the CPU usage since we last checked.
+  DIFF_IN=$(echo "scale=0;${BYTES_IN} - ${PREV_IN}" | bc -l)
+  DIFF_OUT=$(echo "scale=0;${BYTES_OUT} - ${PREV_OUT}" | bc -l)
+  DIFF_TOTAL=0
+
+  USAGE_IN=$(FormatNumber "${DIFF_IN}")
+  USAGE_OUT=$(FormatNumber "${DIFF_OUT}")
+
+  if [[ "${DISPLAY}" = "both" ]]; then
+    echo "${USAGE_IN} : ${USAGE_OUT}"
+    echo "${USAGE_IN} : ${USAGE_OUT}"
+    echo ""
+    DIFF_TOTAL=$((DIFF_TOTAL+DIFF_IN))
+    DIFF_TOTAL=$((DIFF_TOTAL+DIFF_OUT))
+  elif [[ "${DISPLAY}" = "in" ]]; then
+    echo "${USAGE_IN}"
+    echo "${USAGE_IN}"
+    echo ""
+    DIFF_TOTAL=$((DIFF_TOTAL+DIFF_IN))
+  elif [[ "${DISPLAY}" = "out" ]]; then
+    echo "${USAGE_OUT}"
+    echo "${USAGE_OUT}"
+    echo ""
+    DIFF_TOTAL=$((DIFF_TOTAL+DIFF_OUT))
+  fi
+else
+  echo "?"
+  echo "?"
+  echo ""
+fi
+
+# Remember the total and idle CPU times for the next check.
+echo "${BYTES_IN}" > "${PREV_FILE}"
+echo "${BYTES_OUT}" >> "${PREV_FILE}"
+
+if [[ "${DIFF_TOTAL}" -ge "${URGENT_VALUE}" ]]; then
+  exit 33
+fi
+\ No newline at end of file