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Full Discussion: Regex question
Top Forums Shell Programming and Scripting Regex question Post 303024036 by boncuk on Thursday 27th of September 2018 10:08:44 AM
Old 09-27-2018
sorry the browswer not putting code tags around the code when I click on button , so I am adding them manually hope it works.
can someone help me on my sed command please?

I am using sun solaris and Linux , what I want is SED to print any string (or output it to a file preferably) that does not have either "01","03","05","07","10" or "11" on the 9th and 10th position .
e.g from the file below I only want these three lines


Code:
433483433339
167710001710
167730600000


Code:
$cat a.txt
 000000001000
 433483433339 <<< print this since 33 is at 9th and 10th pos
 121121211100 
 167710001710 <<< print this since 17 is at 9th and 10th pos
 167735250310
 167735260510
 167735280710
 167730600000 <<< print this since 00 is at 9th and 10th pos

------ Post updated at 10:07 AM ------

Quote:
Originally Posted by Don Cragun
Just using standard sed features and avoiding cases where systems allowing EREs or BREs make a difference, both of the following seem to also do what you want:
Code:
sed -e '/^........0[1357]/d' -e '/^........1[01]/d' a.txt

and:
Code:
sed '/^........0[1357]/d;/^........1[01]/d' a.txt

But, I have no experience with openVMS, so I can't say whether or not either of these will work there.


awesome this one worked

------ Post updated at 10:08 AM ------

how does this command works though .. I understand each parts but how the output of one gets piped to the other?


Code:
sed -e '/^........0[1357]/d' -e '/^........1[01]/d' a.txt

 

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XmTextFindStringWcs(3X) 												   XmTextFindStringWcs(3X)

NAME
XmTextFindStringWcs - A Text function that finds the beginning position of a wide character text string SYNOPSIS
#include <Xm/Text.h> Boolean XmTextFindStringWcs (widget, start, wcstring, direction, position) Widget widget; XmTextPosition start; wchar_t *wcstring; XmTextDirection direction; XmTextPosition *position; DESCRIPTION
XmTextFindStringWcs locates the beginning position of a specified wide character text string. This routine searches forward or backward for the first occurrence of the string, starting from the given start position. If a match is found, the function returns the position of the first character of the string in position. Specifies the Text widget ID. Specifies the character position from which the search pro- ceeds. This is an integer number of characters from the beginning of the text buffer. The first character position is 0. Specifies the wide character search string. Indicates the search direction. It is relative to the primary direction of the text. The possible values are: The search proceeds toward the end of the buffer. The search proceeds toward the beginning of the buffer. Specifies the pointer in which the first character position of the string match is returned. This is an integer number of characters from the beginning of the buf- fer. The first character position is 0. If the function returns False, this value is undefined. For a complete definition of Text and its associated resources, see XmText(3X). RETURN VALUE
Returns True if a string match is found; otherwise, returns False. SEE ALSO
XmText(3X), XmTextFindString(3X) XmTextFindStringWcs(3X)
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