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| + | The <code>s</code> (substitute) command can be used to replace specified characters, and the <code>S</code> command can be used to replace specified lines. |
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<pre> |
<pre> |
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| − | foo_bar_baz1= |
+ | foo_bar_baz1 = a1 |
| + | foo_bar_baz2 = a2 |
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| − | foo_bar_baz1=abc674 |
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| + | foo_bar_baz3 = a3 |
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| − | foo_bar_baz1=qrs |
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| + | foo_bar_baz4 = a4 |
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| − | foo_bar_baz1=m1 |
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| + | foo_bar_baz5 = a5 |
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| − | foo_bar_baz1=bz90 |
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| + | foo_bar_baz6 = a6 |
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| − | foo_bar_baz1=bc |
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</pre> |
</pre> |
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| + | Put the cursor on the <code>f</code> at the start of the first line and type the following: <code>7s</code> then <code>fixed</code> then press Esc. That changes <code>foo_bar_baz1</code> to <code>fixed_baz1</code>. Move the cursor to the start of the next line and press <code>.</code> to repeat the command. |
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| − | Needing to only substitute a portion of the string, I referred to a VIM reference card and discovered a command answering my need exactly. The s command is used to subsitute a certain number of characters. In my example file above, if I only needed to subsititute the characters foo_bar, I set the cursor on the first character where I'd like the subsitution to begin and type 7s. VIM drops the characters foo_bar and goes to insert mode, waiting for the substitution text. |
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| + | A single character can be replaced with the <code>r</code> command. For example, with the cursor on "f", type <code>rt</code> to replace the "f" with "t". That only works with characters that can be entered with a single key press, and <code>s</code> can be used to for a replacement with a digraph. For example, put the cursor on the "x" in text "12x10<sup>6</sup>" then press <code>s</code> followed by Ctrl-K <code>*X</code> to change the text to "12×10<sup>6</sup>". |
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| − | After years of using vi and VIM and always deleting multiple lines in order to replace them, I just discovered the S command. If you need to subsitute three lines of text, simply type 3S. VIM drops the three lines and goes into insert mode, waiting for the subsitution text. |
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| + | If you need to substitute three lines of text, type <code>3S</code>. Vim deletes the three lines and enters insert mode, waiting for the subsitution text. |
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==Comments== |
==Comments== |
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| − | You could |
+ | You could select the "foo_bar" characters with Ctrl+V (Visual Block – Ctrl+Q on Windows), press "c" to change the block, make your change to the first line, and press Esc. All the lines you selected will be changed the same way. |
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Latest revision as of 04:18, 8 August 2015
The s (substitute) command can be used to replace specified characters, and the S command can be used to replace specified lines.
For example, the following has the same leading string on several lines:
foo_bar_baz1 = a1 foo_bar_baz2 = a2 foo_bar_baz3 = a3 foo_bar_baz4 = a4 foo_bar_baz5 = a5 foo_bar_baz6 = a6
Put the cursor on the f at the start of the first line and type the following: 7s then fixed then press Esc. That changes foo_bar_baz1 to fixed_baz1. Move the cursor to the start of the next line and press . to repeat the command.
A single character can be replaced with the r command. For example, with the cursor on "f", type rt to replace the "f" with "t". That only works with characters that can be entered with a single key press, and s can be used to for a replacement with a digraph. For example, put the cursor on the "x" in text "12x106" then press s followed by Ctrl-K *X to change the text to "12×106".
If you need to substitute three lines of text, type 3S. Vim deletes the three lines and enters insert mode, waiting for the subsitution text.
Comments[]
Of course, if you're lazy like me and you don't want to count that there are 7 characters that you want to replace, you could use the c command and use a motion to specify how much to kill. For example, in the previous example, I'd type c2t_ to kill foo_bar and to be left in insert mode.
You could select the "foo_bar" characters with Ctrl+V (Visual Block – Ctrl+Q on Windows), press "c" to change the block, make your change to the first line, and press Esc. All the lines you selected will be changed the same way.