08-21-2019
Check if string contains substring surrounded by numbers
Hi,
I have a process that generates strings.
I would like to check each string and search for substring which contains the letter 'E' surrounded by numbers (both sides of the letter 'E').
few examples:
AA4E7012A2 - contains E surrounded by numbers
FE18274012 - does not contain E surrounded by numbers
49EFCE8FC3 - does not contain E surrounded by numbers
F3DCD73EA1 - does not contain E surrounded by numbers
957FF564E7 - contains E surrounded by numbers
I tried few options of using the next check without much success: ^[[:digit:]]*[[:alpha:]]*[[:digit:]]*$
please advise.
Thanks,
YE
Last edited by rbatte1; 08-21-2019 at 01:25 PM..
Reason: Added ICODE tags
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LEARN ABOUT REDHAT
strstr
STRSTR(3) Linux Programmer's Manual STRSTR(3)
NAME
strstr - locate a substring
SYNOPSIS
#include <string.h>
char *strstr(const char *haystack, const char *needle);
DESCRIPTION
The strstr() function finds the first occurrence of the substring needle in the string haystack. The terminating ` ' characters are not
compared.
RETURN VALUE
The strstr() function returns a pointer to the beginning of the substring, or NULL if the substring is not found.
BUGS
Early versions of Linux libc (like 4.5.26) would not allow an empty argument. Later versions (like 4.6.27) work correctly, and return
haystack when needle is empty.
CONFORMING TO
ISO 9899
SEE ALSO
index(3), memchr(3), rindex(3), strchr(3), strpbrk(3), strsep(3), strspn(3), strtok(3)
GNU
1993-04-12 STRSTR(3)