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agrep (approximate grep) is an open-source approximate string matching program, developed by Udi Manber and Sun Wu between 1988 and 1991, [26] for use with the Unix operating system. It was later ported to OS/2, DOS, and Windows. agrep matches even when the text only approximately fits the search pattern. [27]
/B Matches pattern if at the beginning of a line. /E Matches pattern if at the end of a line. /L Uses search strings literally. /R Uses search strings as regular expressions. /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.
grep like filter n: Next Search Match N: Previous Search Match Esc u: Turn off Match Highlighting (see -g command line option) - c Toggle option c , e.g., -i toggles option to match case in searches m c Set Mark c ' c Go to Mark c = or Ctrl+G: File information : n: Next file : p: Previous file h: Help. This is presented with less, q to quit. q
/C Displays only the count of lines containing the string. /N Displays line numbers with the displayed lines. /I Ignores the case of characters when searching for the string. Note: If a pathname is not specified, FIND searches the text typed at the prompt or piped from another command.
Wildcard completion is a generalization of path completion, where an expression matches any number of files, using any supported syntax for file matching. Variable completion is the completion of the name of a variable name (environment variable or shell variable). Bash, zsh, and fish have completion for all variable names.
Like sed and grep, it is a filter, [4] and it is a standard feature of most Unix-like operating systems. The AWK language is a data-driven scripting language consisting of a set of actions to be taken against streams of textual data – either run directly on files or used as part of a pipeline – for purposes of extracting or transforming ...
chvt — Change to virtual terminal number N. cksum — For each file, output crc32 checksum value, length and name of file. clear — Clear the screen. cmp — Compare the contents of two files. comm — Select or reject lines common to two files. count — Copy stdin to stdout, displaying simple progress indicator to stderr. cp — Copy files.
wc (short for word count) is a command in Unix, Plan 9, Inferno, and Unix-like operating systems.The program reads either standard input or a list of computer files and generates one or more of the following statistics: newline count, word count, and byte count.