(Note that the brackets in these class names are part of the symbolic names, and must be included in addition to the brackets delimiting the bracket expression.) Most meta-characters lose their special meaning inside bracket expressions. To include a literal ] place it first in the list. ...
If the first few bytes of a file indicate that the file contains binary data, assume(假定) that the file(二进制文件) is of type TYPE. By default, TYPE isbinary, and grep normally outputs either aone-line messagesaying that a binary file matches, or no message if there is no match. I...
file命令可以辨别出一个给定文件的文件类型,如:file lf.gz,其输出结果为: lf.gz: gzip compressed data, deflated, original filename, last modified: Mon Aug 27 23:09:18 2001, os:Unix 我们利用这点写了一个名为smartzip的脚本,该脚本可以自动解压bzip2, gzip和zip 类型的压缩文件: #!/bin/sh ftype...
grep[options]PATTERN[FILE...] grep[options] [-ePATTERN|-fFILE] [FILE...] 描述DESCRIPTION Grep搜索以FILE命名的文件输入 (或者是标准输入,如果没有指定文件名,或者给出的文件名是-的话),寻找含有与给定的模式PATTERN相匹配的内容的行。默认情况下,grep将把含有匹配内容的行打印出来。 另外,也可以使用两个...
当FILE为目录时,使用ACTION去处理它,ACTION默认为read,也可以为skip或recurse,ACTION为read时,grep将该文件作为普通文件处理,为skip时跳过读取该文件,为recurse时,递归读取所有文件。 xiaohui@ubuntu:~/work/grep_learn$ grep text dir/ grep: dir/: Is a directory xiaohui@ubuntu:~/work/grep_learn$ grep text...
accomplishes the same thing without unzipping the whole file, and while i have never seen a log.tar.gz file that was a binary, i will concede that it might happen, so add the -a in there:zgrep -ia "string" log.tar.gzit's still shorter/easier to type......
Same, but also search inside archives (e.g. zip and tar files) and compressed files with -z:ug -z -tc++ -2 -nkw main myproject Search recursively the working directory for main while ignoring gitignored files (e.g. assuming .gitignore is in the working directory or below):...
Now, you can search for text or other patterns inside the resulting archive. zgrep emailtest-file.gz 8. Find Email Addresses Admins can also list email addresses from text files using the Linux grep command. The following example does this by searching for a regular expression pattern. ...
--label=LABEL Display input actually coming from standard input as input coming from file LABEL. This is especially useful when implementing tools like zgrep, e.g., gzip -cd foo.gz | grep --label=foo -H something. See also the -H option. -n, --line-number Prefix each line of ...
This can be useful for commands that transform a file's contents before searching, e.g., gzip -cd foo.gz | grep --label=foo -H 'some pattern'. See also the -H option. -n, --line-number Prefix each line of output with the 1-based line number within its input file. -T, ...