The
grep
command in Linux is widely used for parsing files and searching for useful data in the outputs of different commands.Having such a text-searching tool for the command line would be a valuable addition to Unix; naturally, such a tool exists. It is called grep, and it is the subject of today's column. An application providing superior performance for loading and searching through large text files Interpret text documents in any encoding supported by Mac OS X Highly optimized loading and matching.
Hi, I've prob in doing grep. I want to grep line staring with number 531250 in the 1st column from a file (example in picture attached below) using command grep -w '531250' file my ideal result should be 531250 1 21 42.1 100 1e-05. GrepWin is a simple search and replace tool which can use regular expressions to do its job. This allows to do much more powerful searches and replaces. Note: project has moved to GitHub. He needed a tool that could search for phrases and strings within text files. Thompson spent about an hour that evening making his tool a general utility that could be used by others and renamed it as grep. He took the name from the ed command string g/re/p, which translates as “global regular expression search.”.
The
findstr
command is a Windows grep
equivalent in a Windows command-line prompt (CMD).In a Windows PowerShell the alternative for
grep
is the Select-String
command.Below you will find some examples of how to “grep” in Windows using these alternatives.
![Grep Tool For Mac Grep Tool For Mac](/uploads/1/1/1/6/111696227/794880852.png)
![Grep Grep](/uploads/1/1/1/6/111696227/394004030.png)
Grep Command in Windows
Grep the output of a
netstat
command for a specific port:If a command in PowerShell returns some objects, before parsing, they should be converted to strings using the
Out-String -Stream
command:Grep a file for a pattern that matches a regular expression (case insensitive):
Grep Tool For Mac Osx
Display
help
for the Windows grep
command equivalents: