Regular Expressions 101

Pro

^start of string

Character Class[ \t]*

*matches any number of characters from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

\ta tab character (ASCII 9)

Non-Capturing Group(?:command=")

command="the literal text command=" (case sensitive)

Group 1([^ ]+)

Negated Character Class[^ ]+

+matches at least one character outside the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

--config='the literal text --config=' (case sensitive)

Group 2([^']+)

Negated Character Class[^']+

+matches at least one character outside the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

' serv key-the literal text ' serv key- (case sensitive)

Group 3([^"]+)

Negated Character Class[^"]+

+matches at least one character outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

",the literal text ",

Non-Capturing Group(?:[^ ]+)

Negated Character Class[^ ]+

+matches at least one character outside the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

ssh-rsa the literal text ssh-rsa (case sensitive)

Group 4([^ ]+)

Negated Character Class[^ ]+

+matches at least one character outside the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

the literal (32₁₀ / 40₈ / 20₁₆)

Group 5([^ ]+)

Negated Character Class[^ ]+

+matches at least one character outside the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

Character Class[ \t]*

*matches any number of characters from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

\ta tab character (ASCII 9)

$end of string

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

^[ \t]*(?:command=")([^ ]+) --config='([^']+)' serv key-([^"]+)",(?:[^ ]+) ssh-rsa ([^ ]+) ([^ ]+)[ \t]*$

New

command="/home/user/gitea --config='/home/user/etc/app.ini' serv key-999",option-1,option-2,option-n ssh-rsa public-key-value key-name