Bash shell snippet for daily use

Bash shell snippet for daily use

# Generate du command to check disk
# Ignore all the mount points nfs4. Modify the "df -t nfs4" as you want
# Run with lowest CPU priority and lowest diskio priority

# extract the content from the last column and store it in an array
IFS=$'\n' read -d '' -ra MOUNT_POINTS <<< "$(df -h -t nfs4 | awk '{print $NF}')"

# construct the new du command with the excluded mount points
DU_COMMAND="nice -n 19 ionice -c 3 du -shxc /* --exclude=/proc"
for mount_point in "${MOUNT_POINTS[@]}"; do
    DU_COMMAND+=" --exclude=$mount_point"
done

# echo the du command, excluding the mount points and /proc/, and sorting the output by size
echo "$DU_COMMAND | sort -h"



# Find delete log file older than 10 days
find /var/log/ -type f -mtime +10 -print -delete