Answers for "how to delete particular line and range of line in sed"

bash delete a range of lines from a file

# Basic syntax using sed:
sed 'm,nd' input_file
# Where m is the start line number and n is the end line number inclusive

# Note, add -i to delete the lines in place. E.g.: 
sed -i 'm,nd' input_file # This changes the original input_file

bash how to delete a specific line from a file

# Basic syntax:
sed 'line#d' input_file
# Where line# is the line you want to delete from the input_file

# Example usage:
input_file contains:
this is
my favorite
line

sed '2d' input_file
--> this is
--> line