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add more bash globbing examples

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I-Man Ng 2019-05-14 12:30:18 +08:00 committed by GitHub
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@ -92,10 +92,17 @@ Esc + c
##### Bash globbing
```bash
# '*' character serves as a "wild card" for filename expansion.
# '?' character serves as a single-character "wild card" for filename expansion.
/b?n/?at #/bin/cat
/etc/pa*wd #/etc/passwd
# '*' serves as a "wild card" for filename expansion.
/b?n/?at #/bin/cat
# '?' serves as a single-character "wild card" for filename expansion.
/etc/pa*wd #/etc/passwd
# ‘[]’ serves to match the character from a range.
ls -l [a-z]* #list all files with alphabet in its filename.
# ‘{}’ can be used to match filenames with more than one patterns
ls {*.sh,*.py} #list all .sh and .py files
```
##### Some handy environment variables