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Adam Carter wrote: |
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> I need to select all the lines between string1 and string2 in a file. |
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> String1 exists on an entire line by itself and string2 will be at the |
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> start of a line. What's the syntax? I cant use -A as there is a variable |
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> number of lines. |
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|
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Perl will handle this easily enough for you. |
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|
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Assuming you want to print string1 and string2: |
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|
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perl -n -e 'print if /string1/ ../string2/'; |
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|
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The '..' notation behaves sort of like a triac |
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(flip-flop?): it is false until the first test |
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is true and true until the second passes, at |
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which point it stays false again. |
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|
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for example: |
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|
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$ cat a |
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abcd |
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abcd |
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abcd |
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abcd |
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abcd |
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abcd |
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abcd |
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abcd |
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abcd |
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abcd |
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abcd |
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foo <-- /foo/ true here |
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asdf |
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asdf |
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asdf |
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asdf |
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asdf |
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asdf |
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asdf |
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asdf |
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asdf |
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asdf |
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asdf |
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asdf |
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bar <-- /bar/ true here |
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fdsa |
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fdsa |
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fdsa |
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|
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$ perl -n -e 'print if /foo/ .. /bar/'; |
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foo |
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asdf |
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asdf |
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asdf |
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asdf |
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asdf |
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asdf |
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asdf |
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asdf |
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asdf |
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asdf |
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asdf |
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asdf |
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bar |
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|
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|
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-- |
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Steven Lembark 85-09 90th St. |
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Workhorse Computing Woodhaven, NY, 11421 |
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lembark@×××××××.com +1 888 359 3508 |
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