find all after line start code example

Example 1: grep all lines after first match

For grepping all lines from match to end of file use onw of following:
sed -n '/matched/,$p' file
awk '/matched/,0' file

Example 2: sed print from match to end of file

For retrieving part from match to end of file use onw of following:
sed -n '/matched/,$p' file
awk '/matched/,0' file