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Full Discussion: Grep in regex
Top Forums UNIX for Beginners Questions & Answers Grep in regex Post 302987083 by Meeran Rizvi on Monday 5th of December 2016 02:23:26 AM
Old 12-05-2016
Grep in regex

Hello guys,
Here i am writing a script in bash to check for a valid URL from a file using regex
This is my input file
Code:
http://www.yahoo.commmmmm
http://www.google.com
https://www.gooogle.co
www.test6.co.in
www.gmail.com
www.google.co
htt://www.money.com
http://eeeess.google.com
https:/ww.test.c.in

#my script
Code:
URL=$(grep -E -o   "^(http(s)?://)?+(w{3}\.)+([a-z0-9]{1,64}\.)+\w{2,3}" $path )

What my output is:
Code:
http://www.yahoo.com
http://www.google.com
https://www.gooogle.co
www.test6.co.in
www.gmail.com
www.google.co

here it is trimming the htttp://www.yahoo.commmmmm
Help me out from this

Last edited by rbatte1; 12-05-2016 at 08:00 AM..
 

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RE_COMP(3)						     Linux Programmer's Manual							RE_COMP(3)

NAME
re_comp, re_exec - BSD regex functions SYNOPSIS
#define _REGEX_RE_COMP #include <sys/types.h> #include <regex.h> char *re_comp(char *regex); int re_exec(char *string); DESCRIPTION
re_comp() is used to compile the null-terminated regular expression pointed to by regex. The compiled pattern occupies a static area, the pattern buffer, which is overwritten by subsequent use of re_comp(). If regex is NULL, no operation is performed and the pattern buffer's contents are not altered. re_exec() is used to assess whether the null-terminated string pointed to by string matches the previously compiled regex. RETURN VALUE
re_comp() returns NULL on successful compilation of regex otherwise it returns a pointer to an appropriate error message. re_exec() returns 1 for a successful match, zero for failure. CONFORMING TO
4.3BSD. NOTES
These functions are obsolete; the functions documented in regcomp(3) should be used instead. SEE ALSO
regcomp(3), regex(7), GNU regex manual COLOPHON
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. GNU
1995-07-14 RE_COMP(3)
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