cat a.txt
echo hi
echo hu
echo ha
Q: how can I execute ex.: the second line in a.txt when it is opened with vi?
so "vi a.txt" -> then SOMEMAGICCOMMAND -> then the "echo hu" is executed as a command. How?
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Do you want the output to replace the command that was run? Where do you want to see the output when a command is executed? – slm Oct 19 '13 at 20:59
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Are you using vi or vim? I realize you said vi but I just wanted to clarify. – slm Oct 20 '13 at 06:00
2 Answers
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Executes current line and captures the output in the file replacing the line
:. !sh
Executes lines 2 to 4 and captures the output in the file replacing those lines
:2,4 !sh
Executes the whole file and captures the output in the file replacing all lines
:% !sh
Same as above but without capturing the output in the file, just printing it
:.w !sh
:2,4w !sh
:%w !sh
forcefsck
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Assuming you're using vim
I know that if you select the line containing the text (Shift + V) and then give the command:
:!sh
It will execute the selected line and replace it with the results.
Example
You can see what happens in the demo below.
slm
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@kurtm - correct, it's vim. I assumed he was using vim. Added a note on my answer. – slm Oct 20 '13 at 06:00
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