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On Sun, 28 Jun 2015 14:46:01 +0200 |
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Patrice Clement <monsieurp@g.o> wrote: |
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> man 3 glob |
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> man 3 fnmatch |
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> man 1 bash -> read the section called "Pattern Matching" under |
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> "EXPANSION". |
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> |
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> in this case, $(ls) would unnecessarily spawn a subshell for listing |
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> files. You can often get the same result by using wildcard expansion |
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> (or globbing) like Michal said: |
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> |
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> for lang in *; do |
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> ... |
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> done |
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> |
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> It is often faster. |
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and it avoids aliases: |
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/etc $ echo $(ls) |
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total 1.7M drwxr-xr-x 4 root root 4.0K Aug 29 2014 acpi -rw-r--r-- 1 |
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root root 44 Oct 6 2014 adjtime drwxr-xr-x 2 root root 4.0K Jun 26 |
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19:27 adobe drwxr-xr-x 3 root root 4.0K Mar 22 15:46 ardour3 drwxr-xr-x |
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3 root root 4.0K May 8 13:14 ardour4 drwxr-xr-x 2 root root 4.0K Jun 15 |
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17:06 at-spi2 drwxr-xr-x 3 root root etc. |
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I doubt that is what is wanted |
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However, beware of empty directories: |
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/tmp/toto $ ls |
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total 0 |
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/tmp/toto $ for a in *; do echo $a; done |
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* |
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