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grep    
n. 文本查找工具

文本查找工具

A {Unix} command for
searching files for lines matching a given {regular
expression} (RE). Named after the {qed}/{ed} editor
subcommand "g/re/p", where re stands for a regular expression,
to Globally search for the Regular Expression and Print the
lines containing matches to it. There are two other variants,
fgrep which searches only for fixed strings and {egrep} which
accepts extended REs but is usually the fastest of the three.

Used by extension to mean "to look for something by pattern".
When browsing through a large set of files, one may speak of
"grepping around". "Grep the bulletin board for the system
backup schedule, would you?" See also {vgrep}.

[{Jargon File}]

Global Regular Expression Print (Unix)


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英文字典中文字典相关资料:


  • grep function - RDocumentation
    grep(value = FALSE) returns a vector of the indices of the elements of x that yielded a match (or not, for invert = TRUE) This will be an integer vector unless the input is a long vector, when it will be a double vector
  • Whats the difference between grep -r and -R - Stack Overflow
    If you give a symbolic link as an argument to grep -r it follows it However, if grep -r encounters a symbolic link while traversing a directory it does not follow it (in contrast to grep -R which does)
  • Linux: Recursive file searching with `grep -r` (like grep + find)
    Recurse in directories skip file matching PATTERN As you’ve seen, the grep -r command makes it easy to recursively search directories for all files that match the search pattern you specify, and the syntax is much shorter than the equivalent find grep command
  • grep Cheat Sheet - grep Command Line Guide
    With options for recursive searches, regular expressions, and output customization, grep offers flexibility for a wide range of tasks Whether you’re filtering logs, analyzing data, or debugging code, mastering grep enhances productivity in any text-processing workflow





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