I have a series of text files for which I’d like to know the lines in common rather than the lines which are different between them. Command line Unix or Windows is fine.
File foo:
linux-vdso.so.1 => (0x00007fffccffe000)
libvlc.so.2 => /usr/lib/libvlc.so.2 (0x00007f0dc4b0b000)
libvlccore.so.0 => /usr/lib/libvlccore.so.0 (0x00007f0dc483f000)
libc.so.6 => /lib/libc.so.6 (0x00007f0dc44cd000)
File bar:
libkdeui.so.5 => /usr/lib/libkdeui.so.5 (0x00007f716ae22000)
libkio.so.5 => /usr/lib/libkio.so.5 (0x00007f716a96d000)
linux-vdso.so.1 => (0x00007fffccffe000)
So, given these two files above, the output of the desired utility would be akin to file1:line_number, file2:line_number == matching text (just a suggestion; I really don’t care what the syntax is):
foo:1, bar:3 == linux-vdso.so.1 => (0x00007fffccffe000)