Add left-status script to show ip address, memory usage and if connected to a vpn

1 files changed, 36 insertions, 0 deletions

diff --git a/.config/tmux/left-status.sh b/.config/tmux/left-status.sh
new file mode 100755
index 0000000..06ae1a6
--- /dev/null
+++ b/.config/tmux/left-status.sh
@@ -0,0 +1,36 @@
+#!/bin/bash
+
+function ip-address() {
+    # Loop through the interfaces and check for the interface that is up.
+    for file in /sys/class/net/*; do
+        iface=$(basename $file);
+        read status < $file/operstate;
+        [ "$status" == "up" ] && ip addr show $iface | awk '/inet /{printf $2" "}'
+    done
+}
+
+function memory-usage() {
+    if [ "$(which bc)" ]; then
+        # Display used, total, and percentage of memory using the free command.
+        read used total <<< $(free -m | awk '/Mem/{printf $2" "$3}')
+        # Calculate the percentage of memory used with bc.
+        percent=$(bc -l <<< "100 * $total / $used")
+        # Feed the variables into awk and print the values with formating.
+        awk -v u=$used -v t=$total -v p=$percent 'BEGIN {printf "%sMi/%sMi %.1f% ", t, u, p}'
+    fi
+}
+
+function vpn-connection() {
+    # Check for tun0 interface.
+    [ -d /sys/class/net/tun0 ] && printf "%s " 'VPN*'
+}
+
+function main() {
+    # Comment out any function you do not need. 
+    ip-address
+    memory-usage
+    vpn-connection
+}
+
+# Calling the main function which will call the other functions.
+main