Regex 101 - Revision history

Iwiseman: /* Match Start and End with anything in the middle */

2021-04-11T03:49:15Z

Match Start and End with anything in the middle

← Older revision		Revision as of 03:49, 11 April 2021
Line 32:		Line 32:
	<syntaxhighlight lang="bash">		<syntaxhighlight lang="bash">
	echo "Me grindurr 9 51 19 3 7 1 2 2 Fred" \|egrep "^Me\s+(.*?)\s+Fred$"		echo "Me grindurr 9 51 19 3 7 1 2 2 Fred" \|egrep "^Me\s+(.*?)\s+Fred$"
			</syntaxhighlight>
			In egrep (.*?) matches any character. It turned out the \s+ was the problem and this works
			<syntaxhighlight lang="bash">
			echo "Me grindurr 9 51 19 3 7 1 2 2 Fred" \|egrep "^Me\s(.*?)\sFred$"
	</syntaxhighlight>		</syntaxhighlight>

2021-04-11T03:39:27Z

Match Start and End with anything in the middle

← Older revision		Revision as of 03:39, 11 April 2021
Line 28:		Line 28:
	s+(.*?)\s+ matches everything from space to last space		s+(.*?)\s+ matches everything from space to last space
	Fred$ makes sure the phrase ends in Fred		Fred$ makes sure the phrase ends in Fred
	~~<br>~~
	Using grep fails, using egrep works		Using grep fails, using egrep works
	<syntaxhighlight lang="bash">		<syntaxhighlight lang="bash">
	echo "Me grindurr 9 51 19 3 7 1 2 2 Fred" \|egrep "^Me\s+(.*?)\s+Fred$"		echo "Me grindurr 9 51 19 3 7 1 2 2 Fred" \|egrep "^Me\s+(.*?)\s+Fred$"
	</syntaxhighlight>		</syntaxhighlight>

2021-04-11T03:39:16Z

Match Start and End with anything in the middle

← Older revision		Revision as of 03:39, 11 April 2021
Line 24:		Line 24:

	=Match Start and End with anything in the middle=		=Match Start and End with anything in the middle=
	Ran into trouble with this as I found grep does not work like the examples~~<br>~~<br>		Ran into trouble with this as I found grep does not work like the examples<br>
	^Me matches beginning		^Me matches beginning
	s+(.*?)\s+ matches everything from space to last space		s+(.*?)\s+ matches everything from space to last space

2021-04-11T03:39:02Z

Match Start and End with anything in the middle

← Older revision		Revision as of 03:39, 11 April 2021
Line 28:		Line 28:
	s+(.*?)\s+ matches everything from space to last space		s+(.*?)\s+ matches everything from space to last space
	Fred$ makes sure the phrase ends in Fred		Fred$ makes sure the phrase ends in Fred
	~~<br>~~<br>		<br>
	Using grep fails, using egrep works		Using grep fails, using egrep works
	<syntaxhighlight lang="bash">		<syntaxhighlight lang="bash">
	echo "Me grindurr 9 51 19 3 7 1 2 2 Fred" \|egrep "^Me\s+(.*?)\s+Fred$"		echo "Me grindurr 9 51 19 3 7 1 2 2 Fred" \|egrep "^Me\s+(.*?)\s+Fred$"
	</syntaxhighlight>		</syntaxhighlight>

2021-04-11T03:38:48Z

Match Start and End with anything in the middle

← Older revision		Revision as of 03:38, 11 April 2021
Line 24:		Line 24:

	=Match Start and End with anything in the middle=		=Match Start and End with anything in the middle=
	~~Look~~ like \~~b is the better approach~~ to ~~^ and~~ $		Ran into trouble with this as I found grep does not work like the examples<br><br>
			^Me matches beginning
			s+(.*?)\s+ matches everything from space to last space
			Fred$ makes sure the phrase ends in Fred
			<br><br>
			Using grep fails, using egrep works
	<syntaxhighlight lang="bash">		<syntaxhighlight lang="bash">
	echo "~~AxxxxxxxB~~" \|~~grep~~ "\~~b\A\w~~*B\b"		echo "Me grindurr 9 51 19 3 7 1 2 2 Fred" \|egrep "^Me\s+(.*?)\s+Fred$"
	</syntaxhighlight>		</syntaxhighlight>

2021-04-11T03:16:11Z

Starts with any number of As and Ends With

@@ Line 10: / Line 10: @@
 <syntaxhighlight lang="bash">
 echo "AAAAAAAAAAAB" |grep "^A*B$
 </syntaxhighlight>

2021-04-11T02:53:49Z

Starts with followed by

← Older revision		Revision as of 02:53, 11 April 2021
Line 12:		Line 12:
	</syntaxhighlight>		</syntaxhighlight>

	=~~Starts~~ with ~~followed by~~=		=Match Start and End with anything in the middle=
			Look like \b is the better approach to ^ and $
	<syntaxhighlight lang="bash">		<syntaxhighlight lang="bash">
	echo "~~AAAAAAAAAAAB~~" \|grep "^A*B"		echo "AxxxxxxxB" \|grep "\b\A\w*B\b"
	</syntaxhighlight>		</syntaxhighlight>

2021-04-11T02:43:29Z

Starts with and Ends With

← Older revision		Revision as of 02:43, 11 April 2021
Line 7:		Line 7:
	echo "AAAAAAAAAAA" \|grep "^A"		echo "AAAAAAAAAAA" \|grep "^A"
	</syntaxhighlight>		</syntaxhighlight>
	==Starts with and Ends With==		==Starts with any number of As and Ends With==
	<syntaxhighlight lang="bash">		<syntaxhighlight lang="bash">
	echo "AAAAAAAAAAAB" \|grep "^A*B$		echo "AAAAAAAAAAAB" \|grep "^A*B$

2021-04-11T02:42:49Z

Examples

2021-04-11T02:42:35Z

Starts with