edRemove ‘ ’ style quotes from README.ME

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bonnie 2022-05-09 00:15:04 +08:00
parent bca6221ed3
commit c70067d38f

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@ -102,10 +102,10 @@ sudo !!
# '?' serves as a single-character "wild card" for filename expansion.
/b?n/?at #/bin/cat
# [] serves to match the character from a range.
# '[]' 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
# '{}' can be used to match filenames with more than one patterns
ls *.{sh,py} #list all .sh and .py files
```
@ -295,11 +295,11 @@ grep -oP '\d*'
```
##### Grep integer with certain number of digits (e.g. 3)
```bash
grep [0-9]\{3\}
grep '[0-9]\{3\}'
# or
grep -E [0-9]{3}
grep -E '[0-9]{3}'
# or
grep -P \d{3}
grep -P '\d{3}'
```
##### Grep only IP address
@ -413,7 +413,7 @@ grep 'A.B'
##### Regex with or without a certain character (e.g. color or colour)
```bash
grep colou?r
grep 'colou?r'
```
##### Grep all content of a fileA from fileB