Disk space remains the same pre and post file deletion. It is likely a process is still using the deleted file. To get a list of deleted files which are still marked open by processes:

lsof +L1

COMMAND PID USER   FD   TYPE DEVICE SIZE/OFF NLINK    NODE NAME
tuned   111 root    7u   REG  202,2     4333091     0 2141 /tmp/jar_cache23323.tmp (deleted)

Simply kill the process to dump the file in question:

kill -9 111

ps -o rss -C httpd | tail -n +2 | (sed 's/^/x+=/'; echo x) | bc

find /path -printf '%T+ %p\n' | sort -r | head

curl ipinfo.io/ip

1. Install mutt

yum install mutt

2. Zip the file you wish to send

3. Send the file with mutt

mutt -a file.zip -s "Kafka" -- hello@emailaddress.com

Follow the prompts on screen. The tmp file which opens is to add text to the email body. Enter some text, save and close it. Hit Y to send.