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2025-03-29 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Servers >
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Preface
The cat command is used to connect files and print them to a standard output device (screen or > fileName to another file). The following article will describe this command in more detail.
Command classification: file management
Cat syntax format
Cat [parameter] [file name] cat [- AbeEnstTuv] [--help] [--version] fileName
Parameters.
-A,-- show-all is equivalent to-vET-b,-- number-nonblank for non-empty output line numbers-e is equivalent to-vE-E,-- show-ends displays $- n at the end of each line,-- number pairs for all output line numbers-s,-- squeeze-blank does not output multiline blank lines-t is equivalent to-vT-T,-- show-tabs displays jump characters as ^ Ilyu (ignored)-v -- show-nonprinting uses ^ and M-references Except for LFD and TAB-- help displays this help and leaves
Example
Display the entire file at once and add a line number
Cat-n config.js
Create a file from the keyboard (only files can be created, not edited)
Cat > newFile
Several files are merged into one file
Cat file1 file2 > newFile
Summary
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