[14] | 1 | |
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| 2 | history - list previous commands and their event numbers |
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| 3 | _________________________________________________________________ |
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| 4 | |
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| 5 | history [-h] [<num>] |
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| 6 | |
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| 7 | Lists previous commands and their event numbers. This is a UNIX-like history |
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| 8 | mechanism inside the VIS shell. |
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| 9 | |
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| 10 | Command options: |
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| 11 | |
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| 12 | -h |
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| 13 | Print the command usage. |
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| 14 | |
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| 15 | <num> |
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| 16 | Lists the last <num> events. Lists the last 30 events if <num> is not |
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| 17 | specified. |
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| 18 | |
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| 19 | History Substitution: |
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| 20 | |
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| 21 | The history substitution mechanism is a simpler version of the csh history |
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| 22 | substitution mechanism. It enables you to reuse words from previously typed |
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| 23 | commands. |
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| 24 | |
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| 25 | The default history substitution character is the `%' (`!' is default for |
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| 26 | shell escapes, and `#' marks the beginning of a comment). This can be |
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| 27 | changed using the "set" command. In this description '%' is used as the |
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| 28 | history_char. The `%' can appear anywhere in a line. A line containing a |
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| 29 | history substitution is echoed to the screen after the substitution takes |
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| 30 | place. `%' can be preceded by a `\' in order to escape the substitution, for |
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| 31 | example, to enter a `%' into an alias or to set the prompt. |
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| 32 | |
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| 33 | Each valid line typed at the prompt is saved. If the "history" variable is |
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| 34 | set (see help page for "set"), each line is also echoed to the history file. |
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| 35 | You can use the "history" command to list the previously typed commands. |
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| 36 | |
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| 37 | Substitutions: |
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| 38 | |
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| 39 | At any point in a line these history substitutions are available. |
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| 40 | |
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| 41 | %:0 |
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| 42 | Initial word of last command. |
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| 43 | |
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| 44 | %:n |
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| 45 | n-th argument of last command. |
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| 46 | |
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| 47 | %$ |
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| 48 | Last argument of last command. |
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| 49 | |
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| 50 | %* |
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| 51 | All but initial word of last command. |
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| 52 | |
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| 53 | %% |
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| 54 | Last command. |
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| 55 | |
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| 56 | %stuf |
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| 57 | Last command beginning with "stuf". |
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| 58 | |
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| 59 | %n |
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| 60 | Repeat the n-th command. |
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| 61 | |
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| 62 | %-n |
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| 63 | Repeat the n-th previous command. |
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| 64 | |
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| 65 | ^old^new |
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| 66 | Replace "old" with "new" in previous command. Trailing spaces are |
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| 67 | significant during substitution. Initial spaces are not significant. |
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| 68 | _________________________________________________________________ |
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| 69 | |
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| 70 | Last updated on 20100410 00h02 |
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