Find command

The syntax is:

find /path/to/delete -type f -iname "fileType" -delete

OR

find /path/to/delete -type f -iname "fileType" -exec rm -f {} \;

To delete all *.bak files in bulk from /netapp/ and its sub-directory, enter:
# find /netapp/ -type f -iname "*.bak" -delete
OR
# find /netapp/ -type f -iname "*.bak" -exec rm -f {} \;

Shell scripting example to delete files in bulk

In this example, I have a file called delete.txt (with 5000+ entries, each per line) and you need to delete all those files:

/netapp/one.txt
/netapp/dir2/one.txt
/netapp/dir1/dir500/one.txt
....
...
....
/netapp/fivek.txt

Create a shell script as follows to read a text file using while loop one line at a time:

#!/bin/bash
# Author: Vivek Gite
# Purpose: Delete a file using shell script in bulk
# -------------------------------------------------- 
## SET ME FIRST ##
_input="/path/to/delete.txt"
 
## No editing below ##
[ ! -f "$_input" ] && { echo "File ${_input} not found."; exit 1; }
while IFS= read -r line
do 
	[ -f "$line" ] && rm -f "$line"
done < "${_input}"

Run it as follows:
$ chmod +x script.sh
$ ./script.sh
The while statement is used to executes rm commands repeatedly on each file.