Another grep tool I now use all the time on Windows is AstroGrep: Its ability to show me more than just the line search (i.e. The -context=NUM of a command-line grep) is invaluable. Very fast, even on an old computer with non- SSD drive (I know, they used to do this hard drive with spinning disks, called platters, crazy right?). GRCRTools – what is this? One time it used to be just a report converter, known as Grepolis Report Converter. Now it's not only a converter, but also a mighty tool called Grepolis Report Converter Revolution Tools, which improves the gameplay to such an extent, that nowadays many players can't imagine the game without it. Grep, originally developed for Unix-based systems, is one of the most widely used command-line utility in Linux boxes. Its name comes from another similar command in ed tool, i.e., g/re/p which stands for globally search for a regular expression and print matching lines. Grep basically searches for a given pattern or regular expression from standard input or file and prints the lines that. Another tool which is grep equivalent in windows is the findstr command.We look for option available with findstr command using help findstr. It is quite powerful search command like grep and we can use regular expression with it We have a text file,which we will use in our examples /M: Print only those lines which does not match the string.
Easier to understand error messages
The error message ack displays when the regex passed is invalid has been improved. The message is more readable and includes a pointer to the offending part of the regex. For example:
New --proximate option groups matches near each other
A new option --proximate=N groups together lines of output that are within N lines of each other in the file. This is useful when looking for matches that are related to each other.
For example, these results:
look like this with --proximate=1.
Improved -w option
The -w option, which tells ack to only find whole-word matches, did not always work if your pattern began or ended with puncutation. ack would make guesses as to what your intent was, but it was not well-defined. Now, ack disallows regexes that begin or end with non-word characters.
This means that if you use ack -w foo:, the new ack will not allow it, whereas ack 2.x would.
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Added -S as a synonym for --smart-case
For those without --smart-case always on, the -S will be easier for when you do want to use it.
Smart-case matching makes ack do a case-insensitive search unless the pattern being matched has a capital letter in it.
Added -I to force case-sensitivity
If you use --smart-case in your .ackrc, you can use -I to force case-sensitivity instead of having to use --no-smart-case (which still works).
Significant speed improvements
Run times for ack 3 compared to ack 2.22 are 30-40% faster because of removal of unused infrastructure for plugins.
New built-in filetypes
ack now supports SVG, Markdown and POD by default.
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How to install
ack is simple to install, via CPAN, package or simple download. Read how.
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