The line command lists or changes the current line number. It has the same syntax and functionality in native mode and in Java mode.
Display the current line number.
If a number is specified, set the current line number to number.
If a file name is specified, set current line number to line 1 in filename.
If both are specified, set current line number to line number in file-name.
where:
filename is the name of the file in which to change the line number. The ““ quotation marks around the file name are optional. They are useful when your file name contains spaces.
number is the number of a line in the file.
line 100 line "/root/test/test.cc":100