Regex (or regexp) is known as regular expression matching of patterns, strings or characters in, for example, a large text file. Questions should be tagged as such whatever the programming language involved and the tag can also apply to command-line or graphical programs that have regex plugins or ...

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Grep for a pattern in line

How can i grep for a specific pattern of numbers like 1000010000000 in a whole file - the line has to have thes numbers at the beginning not somewhere else...
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1answer
54 views

Color the regular expression in same file

I have a big file and need to look over certain patterns. and also look for another patterns based on first pattern and thus this requires to color the lines which matches the search in the same file. ...
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1answer
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mksquashfs not excluding file

I am having issues excluding a specific file from a squashfs. I want to be able to exclude all file types ending with *.db but have had no luck. Whenever I run the mksquashfs command with the ...
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1answer
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How to install i386 (32bit) boost-regex library to amd64 (64bit) system, 15.04

I tried to use this command: sudo apt-get install libboost-regex1.55-dev:i386 And i have some errors: Reading package lists... Done Building dependency tree Reading state information... Done Some ...
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0answers
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header_checks in Postfix

I attempted to write a regex for header_checks to filter out To: header, but it is not working. The assumption is: if a header To: does not contain local domain names it will reject the message. ...