Grep to Print all file content

 

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  • Colorized grep — viewing the entire file with highlighted matches 15 answers

    • 简单的grep + cat组合： 

    grep 'pattern' file && cat file

    Use grep 's -l option to list the paths of files with matching contents, then print the contents of these files using cat . 

    grep -lR 'regex' 'directory' | xargs -d 'n' cat

    The command from above cannot handle filenames with newlines in them. To overcome the filename with newlines issue and also allow more sophisticated checks you can use the find command.

    The following command prints the content of all regular files in directory . 

    find 'directory' -type f -print0 | xargs -0 cat

    To print only the content of files whose content match the regexes regex1 and regex2 , use 

    find 'directory' -type f 
     -exec grep -q 'regex1' {} ; -and 
     -exec grep -q 'regex2' {} ;  -print0 |
xargs -0 cat

    The linebreaks are only for better readability. Without the you can write everything into one line.
    Note the -q for grep . That option supresses grep 's output. grep 's exit status will tell find whether to list a file or not.

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