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grep is a command-line utility for searching plaintext datasets for lines that match a regular expression.Its name comes from the ed command g/re/p (global regular expression search and print), which has the same effect.
grep is a command-line utility for searching plain-text data sets for lines matching a regular expression and by default reporting matching lines on standard output. tree is a command-line utility that recursively lists files found in a directory tree, indenting the filenames according to their position in the file hierarchy.
/S Searches for matching files in the current directory and all subdirectories. /I Specifies that the search is not to be case-sensitive. /X Prints lines that match exactly. /V Prints only lines that do not contain a match. /N Prints the line number before each line that matches. /M Prints only the filename if a file contains a match.
He later added this capability to the Unix editor ed, which eventually led to the popular search tool grep's use of regular expressions ("grep" is a word derived from the command for regular expression searching in the ed editor: g/re/p meaning "Global search for Regular Expression and Print matching lines"). [15]
grep-i 'blair' filename.log | more. where the output from the grep process (all lines containing 'blair') is piped to the more process (which allows a command line user to read through results one page at a time). The same "pipe" feature is also found in later versions of DOS and Microsoft Windows.
The PRINT command adds or removes files in the print queue. This command was introduced in MS-DOS version 2. [1] Before that there was no built-in support for background printing files. The user would usually use the copy command to copy files to LPT1.
Bracket matching: Find matching parenthesis or bracket, taking into account nesting. Auto indentation : May refer to just simple indenting to the same level as the line above, or intelligent indenting that is language specific, e.g., ensuring a given indent style .
Grep: search repository for lines matching a pattern; Record: include only some changes to a file in a commit and not others; Note: Commands in green rectangles that are not surrounded by [square brackets] are at an interactive command-line prompt. Text in [square brackets] is an explanation of where to find equivalent functionality.