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Hash: SHA1 |
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|
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Neil Bothwick wrote: |
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> Note you can also nest commands when using $(), which you can't do with |
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> backticks. |
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|
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You can nest commands with ``, it's just less intuitive; each of the |
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following are equivalent: |
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|
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echo $(echo $(echo $(echo $(echo foo)))) |
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echo $(echo $(echo $(echo `echo foo`))) |
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echo $(echo $(echo `echo \`echo foo\``)) |
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echo $(echo `echo \`echo \\\`echo foo\\\`\``) |
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echo `echo \`echo \\\`echo \\\\\\\`echo foo\\\\\\\`\\\`\`` |
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|
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Yes, that is a *lot* of backslashes in the last one, which is why no one |
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nests that far with `` (personally, I always use $() instead of ``, but |
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that's mainly because I switched my escape for GNU screen from ^A to `). |
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|
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- -- |
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Jonathan |
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Version: GnuPG v2.0.11 (GNU/Linux) |
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Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org |
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=ewZb |
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