Hello,

i wanted to exclude 860 out of output, but not 1860 nor 86000

860
1790
1800
1810
1860
86000

grep -v 860 -Fx filename

result:
1790
1800
1810
1860
86000

Then i wanted to include only 860, not 1860 and 8600 or anything else

grep 860 -Fx filename

result:
860

-F, --fixed-strings
Interpret PATTERN as a list of fixed strings, separated by newlines, any of which is to be matched. (-F is
specified by POSIX.)


-x, --line-regexp
Select only those matches that exactly match the whole line. (-x is specified by POSIX.)