diff options
Diffstat (limited to 'README.md')
| -rw-r--r-- | README.md | 16 |
1 files changed, 8 insertions, 8 deletions
@@ -36,8 +36,8 @@ command is optional. For example, a pattern string may look like ‘`x/[a-z]+/ g.foo. v/bar/`’. -The available operators are ‘g’, ‘v’, ‘x’, and ‘y’. The ‘g’ and ‘v’ -operators are filter operators, while ‘x’ and ‘y’ are selection +The available operators are ‘g’, ‘G’, ‘x’, and ‘X’. The ‘g’ and ‘G’ +operators are filter operators, while ‘x’ and ‘X’ are selection operators. You probably want to begin your pattern with a selection operator. By @@ -52,11 +52,11 @@ echo 'foo12bar34baz' | grab 'x/[0-9]+/' # ⇒ 34 ``` -The ‘y’ operator works in reverse, selecting everything that _doesn’t_ +The ‘X’ operator works in reverse, selecting everything that _doesn’t_ match the given regex: ```sh -echo 'foo12bar34baz' | grab 'y/[0-9]+/' +echo 'foo12bar34baz' | grab 'X/[0-9]+/' # ⇒ foo # ⇒ bar # ⇒ baz @@ -64,7 +64,7 @@ echo 'foo12bar34baz' | grab 'y/[0-9]+/' You can additionally use filter operators to keep or discard certain results. The ‘g’ operator will filter out any results that don’t match -the given regex, while the ‘v’ operator will do the opposite. To select +the given regex, while the ‘G’ operator will do the opposite. To select all numbers that contain a ‘3’ we can thus do: ``` sh @@ -78,7 +78,7 @@ echo 'foo12bar34baz' | grab 'x/[0-9]+/ g/3/' Likewise to select all numbers that don’t contain a ‘3’: ```sh -echo 'foo12bar34baz' | grab 'x/[0-9]+/ v/3/' +echo 'foo12bar34baz' | grab 'x/[0-9]+/ G/3/' # ⇒ 12 ``` @@ -87,7 +87,7 @@ contain a ‘3’ but aren’t the specific number ‘1337’, we could do the following: ```sh -grab 'x/[0-9]+/ g/3/ v/^1337$/' /foo/bar +grab 'x/[0-9]+/ g/3/ G/^1337$/' /foo/bar ``` @@ -103,7 +103,7 @@ grep '^flags' /proc/cpuinfo \ | uniq # With Grab -grab 'x/^flags.*/ x/\w+/ v/flags/' /proc/cpuinfo \ +grab 'x/^flags.*/ x/\w+/ G/flags/' /proc/cpuinfo \ | sort \ | uniq ``` |