Following demonstrates position evaluation.

>> ./stockfish
Stockfish 271118 64 by T. Romstad, M. Costalba, J. Kiiski, G. Linscott
>> eval
rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1

 +---+---+---+---+---+---+---+---+
 | r | n | b | q | k | b | n | r |
 +---+---+---+---+---+---+---+---+
 | p | p | p | p | p | p | p | p |
 +---+---+---+---+---+---+---+---+
 |   |   |   |   |   |   |   |   |
 +---+---+---+---+---+---+---+---+
 |   |   |   |   |   |   |   |   |
 +---+---+---+---+---+---+---+---+
 |   |   |   |   |   |   |   |   |
 +---+---+---+---+---+---+---+---+
 |   |   |   |   |   |   |   |   |
 +---+---+---+---+---+---+---+---+
 | P | P | P | P | P | P | P | P |
 +---+---+---+---+---+---+---+---+
 | R | N | B | Q | K | B | N | R |
 +---+---+---+---+---+---+---+---+
Legal Moves: 
a2a3 b2b3 c2c3 d2d3 e2e3 f2f3 g2g3 h2h3 a2a4 b2b4 c2c4 d2d4 e2e4 f2f4 g2g4 h2h4 b1a3 b1c3 g1f3 g1h3 
     Term    |    White    |    Black    |    Total   
             |   MG    EG  |   MG    EG  |   MG    EG 
 ------------+-------------+-------------+------------
    Material |  ----  ---- |  ----  ---- |  0.00  0.00
   Imbalance |  ----  ---- |  ----  ---- |  0.00  0.00
  Initiative |  ----  ---- |  ----  ---- |  0.00  0.00
       Pawns |  0.35 -0.08 |  0.35 -0.08 |  0.00  0.00
     Knights |  0.01 -0.14 |  0.01 -0.14 |  0.00  0.00
     Bishops | -0.05 -0.36 | -0.05 -0.36 |  0.00  0.00
       Rooks | -0.34  0.00 | -0.34  0.00 |  0.00  0.00
      Queens |  0.00  0.00 |  0.00  0.00 |  0.00  0.00
    Mobility | -0.91 -1.09 | -0.91 -1.09 |  0.00  0.00
 King safety |  0.72 -0.08 |  0.72 -0.08 |  0.00  0.00
     Threats |  0.00  0.00 |  0.00  0.00 |  0.00  0.00
      Passed |  0.00  0.00 |  0.00  0.00 |  0.00  0.00
       Space |  0.62  0.00 |  0.62  0.00 |  0.00  0.00
 ------------+-------------+-------------+------------
       Total |  ----  ---- |  ----  ---- |  0.00  0.00

Total evaluation: 0.10 (white side)

>> position startpos moves e2e4
>> eval
rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1

 +---+---+---+---+---+---+---+---+
 | r | n | b | q | k | b | n | r |
 +---+---+---+---+---+---+---+---+
 | p | p | p | p | p | p | p | p |
 +---+---+---+---+---+---+---+---+
 |   |   |   |   |   |   |   |   |
 +---+---+---+---+---+---+---+---+
 |   |   |   |   |   |   |   |   |
 +---+---+---+---+---+---+---+---+
 |   |   |   |   | P |   |   |   |
 +---+---+---+---+---+---+---+---+
 |   |   |   |   |   |   |   |   |
 +---+---+---+---+---+---+---+---+
 | P | P | P | P |   | P | P | P |
 +---+---+---+---+---+---+---+---+
 | R | N | B | Q | K | B | N | R |
 +---+---+---+---+---+---+---+---+
Legal Moves: 
a7a6 b7b6 c7c6 d7d6 e7e6 f7f6 g7g6 h7h6 a7a5 b7b5 c7c5 d7d5 e7e5 f7f5 g7g5 h7h5 b8a6 b8c6 g8f6 g8h6 
     Term    |    White    |    Black    |    Total   
             |   MG    EG  |   MG    EG  |   MG    EG 
 ------------+-------------+-------------+------------
    Material |  ----  ---- |  ----  ---- |  0.03  0.00
   Imbalance |  ----  ---- |  ----  ---- |  0.00  0.00
  Initiative |  ----  ---- |  ----  ---- |  0.00  0.03
       Pawns |  0.30 -0.07 |  0.35 -0.08 | -0.04  0.01
     Knights |  0.01 -0.14 |  0.01 -0.14 |  0.00  0.00
     Bishops | -0.05 -0.36 | -0.05 -0.36 |  0.00  0.00
       Rooks | -0.34  0.00 | -0.34  0.00 |  0.00  0.00
      Queens |  0.00  0.00 |  0.00  0.00 |  0.00  0.00
    Mobility | -0.26 -0.27 | -0.91 -1.09 |  0.66  0.82
 King safety |  0.72 -0.08 |  0.64 -0.08 |  0.09  0.00
     Threats |  0.00  0.00 |  0.00  0.00 |  0.00  0.00
      Passed |  0.00  0.00 |  0.00  0.00 |  0.00  0.00
       Space |  0.77  0.00 |  0.46  0.00 |  0.31  0.00
 ------------+-------------+-------------+------------
       Total |  ----  ---- |  ----  ---- |  1.04  0.86

Total evaluation: 0.95 (white side)

>> position startpos moves e2e4 c7c5
>> eval
rnbqkbnr/pp1ppppp/8/2p5/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - 0 2

 +---+---+---+---+---+---+---+---+
 | r | n | b | q | k | b | n | r |
 +---+---+---+---+---+---+---+---+
 | p | p |   | p | p | p | p | p |
 +---+---+---+---+---+---+---+---+
 |   |   |   |   |   |   |   |   |
 +---+---+---+---+---+---+---+---+
 |   |   | p |   |   |   |   |   |
 +---+---+---+---+---+---+---+---+
 |   |   |   |   | P |   |   |   |
 +---+---+---+---+---+---+---+---+
 |   |   |   |   |   |   |   |   |
 +---+---+---+---+---+---+---+---+
 | P | P | P | P |   | P | P | P |
 +---+---+---+---+---+---+---+---+
 | R | N | B | Q | K | B | N | R |
 +---+---+---+---+---+---+---+---+
Legal Moves: 
a2a3 b2b3 c2c3 d2d3 f2f3 g2g3 h2h3 e4e5 a2a4 b2b4 c2c4 d2d4 f2f4 g2g4 h2h4 b1a3 b1c3 g1e2 g1f3 g1h3 f1e2 f1d3 f1c4 f1b5 f1a6 d1e2 d1f3 d1g4 d1h5 e1e2 
     Term    |    White    |    Black    |    Total   
             |   MG    EG  |   MG    EG  |   MG    EG 
 ------------+-------------+-------------+------------
    Material |  ----  ---- |  ----  ---- | -0.03  0.07
   Imbalance |  ----  ---- |  ----  ---- |  0.00  0.00
  Initiative |  ----  ---- |  ----  ---- |  0.00  0.03
       Pawns |  0.30 -0.07 |  0.30 -0.07 |  0.00  0.00
     Knights |  0.01 -0.14 |  0.01 -0.14 |  0.00  0.00
     Bishops | -0.05 -0.36 | -0.13 -0.36 |  0.08  0.00
       Rooks | -0.34  0.00 | -0.34  0.00 |  0.00  0.00
      Queens |  0.00  0.00 |  0.00  0.00 |  0.00  0.00
    Mobility | -0.26 -0.27 | -0.74 -0.85 |  0.49  0.58
 King safety |  0.70 -0.08 |  0.64 -0.08 |  0.06  0.00
     Threats |  0.00  0.00 |  0.00  0.00 |  0.00  0.00
      Passed |  0.00  0.00 |  0.00  0.00 |  0.00  0.00
       Space |  0.70  0.00 |  0.62  0.00 |  0.08  0.00
 ------------+-------------+-------------+------------
       Total |  ----  ---- |  ----  ---- |  0.67  0.69

Total evaluation: 0.77 (white side)