Pushing scripts

block-usg.sh

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+#!/usr/bin/env bash
+
+# vars #
+disk="/dev/mapper/fedora-root" # disk to monitor
+current_blocks=$(df -m | grep ${disk} | awk {'print $2'}) # get amount of blocks used
+mounted=$(df -m | grep ${disk} | awk {'print $6'}) # get disk information
+max_threshold="20000" # max 20000 amount of blocks
+
+email="[email protected]" # mail to sent alert to
+
+# functions #
+function max_blocks_exceeded() {
+
+    # tell that mail is being sent
+    echo "Max amount of MB blocks (${max_threshold}) has exceeded as your MB block amount is set at ${max_threshold} mounted on ${mounted}."
+    echo "Sending Alert..."
+
+    # check if the mail program exist
+    type email > /dev/null 2>&1 || {
+        echo >&2 "Mail does not exist. Install it and run script again. Aborting script..."; exit;
+    }
+
+    # if the mail program exist we continue to this and send the alert
+    mailbody="Max amount of MB blocks (${max_threshold}) exceeded. Current disk (${disk}) usage is at ${current_blocks} mounted on ${mounted}."
+    echo ${mailbody} | mail -s "MB Blocks alert!" "${email}"
+
+    echo "Mail was sent to ${email}"
+}
+
+function abort() {
+
+    echo "No problems. Disk (${disk}) mounted on ${mounted} current MB block limit is at ${current_blocks}. Threshold is set to ${max_threshold}."
+}
+
+function main() {
+
+    # check if a valid disk is chosen
+    if [ ${current_blocks} ]; then
+        # check if current MB block disk usage is greater than or equal to max usage.
+        if [ ${current_blocks%?} -ge ${max_threshold%?} ]; then
+            # if it is greater than or equal to max usage we call our max_exceeded function and send mail
+            max_blocks_exceeded
+        else
+            # if it is ok we do nothing
+            abort
+        fi
+    else
+        # if the disk is not valid, print valid disks on system
+        echo "Set a valid MB block env, and run script again. Your environment looks like the following: "
+        df -m
+    fi
+}
+
+# init #
+main

disk-usg.sh

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+#!/usr/bin/env bash
+
+# vars #
+disk="/dev/mapper/fedora-root" # disk to monitor
+current_capacity=$(df -P | grep ${disk} | awk {'print $5'}) # get disk usage from monitored POSIX disk
+mounted=$(df -P | grep ${disk} | awk {'print $6'}) # get disk information via POSIX
+max_capacity="90%" # max 90% mount capacity
+
+email="[email protected]" # email to
+
+# functions #
+function max_exceeded() {
+
+    # tell that mail is being sent
+    echo "Max capacity of (${max_capacity}) has exceeded as your disk usage is it at ${current_capacity} mounted on ${mounted}."
+    echo "Sending Alert..."
+
+    # check if the mail program exist
+    type email > /dev/null 2>&1 || {
+        echo >&2 "Mail does not exist. Install it and run script again. Aborting script..."; exit;
+    }
+
+    # if the mail program exist we continue to this and send the alert
+    mailbody="Max capacity (${max_usage}) exceeded. Current disk (${disk}) usage is at ${current_capacity} mounted on ${mounted}."
+    echo ${mailbody} | mail -s "Disk alert!" "${email}"
+
+    echo "Mail was sent to ${email}"
+}
+
+function abort() {
+
+    echo "No problems. Disk (${disk}) mounted on ${mounted} capacity is at ${current_capacity}. Max is set to ${max_capacity}."
+}
+
+function main() {
+
+    # check if a valid disk is chosen
+    if [ ${current_capacity} ]; then
+        # check if current disk usage is greater than or equal to max usage.
+        if [ ${current_capacity%?} -ge ${max_capacity%?} ]; then
+            # if it is greater than or equal to max usage we call our max_exceeded function and send mail
+            max_exceeded
+        else
+            # if it is ok we do nothing
+            abort
+        fi
+    else
+        # if the disk is not valid, print valid disks on system
+        echo "Set a valid POSIX disk env, and run script again. Your environment looks like the following: "
+        df -P
+    fi
+}
+
+# init #
+main