projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| fd15fd37 BJ |
1 | |
| 2 | Perhaps the most powerful command in the editor is the 'g' | |
| 3 | (global) command. This always precedes a second command | |
| 4 | on the same command line; it selects those file lines | |
| 5 | on which the second command is to be executed. | |
| 6 | For example | |
| 7 | g/abc/s/def/ghi/p | |
| 8 | says: "Find all lines in the file which | |
| 9 | contain the string "abc"; change the first | |
| 10 | "def" on any such line into "ghi". The command | |
| 11 | after the 'g' may be any command, of course. | |
| 12 | Needless to say, the expressions after the 'g' may | |
| 13 | include all the special characters. | |
| 14 | Edit the file "towns" so that each line beginning | |
| 15 | with "-" has " (county seat)" added at its end. | |
| 16 | Rewrite the file and type "ready". | |
| 17 | #create Ref | |
| 18 | -newark (county seat) | |
| 19 | east orange | |
| 20 | south orange | |
| 21 | maplewood | |
| 22 | -elizabeth (county seat) | |
| 23 | linden | |
| 24 | cranford | |
| 25 | westfield | |
| 26 | -morristown (county seat) | |
| 27 | madison | |
| 28 | chatham | |
| 29 | dover | |
| 30 | #create towns | |
| 31 | -newark | |
| 32 | east orange | |
| 33 | south orange | |
| 34 | maplewood | |
| 35 | -elizabeth | |
| 36 | linden | |
| 37 | cranford | |
| 38 | westfield | |
| 39 | -morristown | |
| 40 | madison | |
| 41 | chatham | |
| 42 | dover | |
| 43 | #user | |
| 44 | #cmp towns Ref | |
| 45 | #log | |
| 46 | #next | |
| 47 | 71.1a 10 | |
| 48 | 70.2e 9 | |
| 49 | 70.2d 6 |