tail maillog -f | grep -E ": 550|: 554" | perl -p -e "s/(550|554)/\e[1;46;1m$&\e[0m/g;"
| 0 | all attributes off |
| 1 | bold |
| 32 | foreground green |
| 40 | background black |
Colors
This vector holds the colors used for SGR control sequences parameters 30 to 37 \(foreground colors) and 40 to 47 (background colors).
| Parameter | Color | |
|---|---|---|
| 30 | 40 | black |
| 31 | 41 | red |
| 32 | 42 | green |
| 33 | 43 | yellow |
| 34 | 44 | blue |
| 35 | 45 | magenta |
| 36 | 46 | cyan |
| 37 | 47 | white |