柳暗花明笔记

    linux grep 忽略匹配

    所属分类:[ linux&mysql ] 猫哲学家 发表于:2014-05-08 10:48 浏览:644

    grep -v 真好用哦

    关于grep的各项参数可以参见grep的帮助

    grep --help
    Usage: grep [OPTION]... PATTERN [FILE]...
    Search for PATTERN in each FILE or standard input.
    PATTERN is, by default, a basic regular expression (BRE).
    Example: grep -i 'hello world' menu.h main.c

    Regexp selection and interpretation:
    -E, --extended-regexp PATTERN is an extended regular expression (ERE)
    -F, --fixed-strings PATTERN is a set of newline-separated fixed strings
    -G, --basic-regexp PATTERN is a basic regular expression (BRE)
    -P, --perl-regexp PATTERN is a Perl regular expression
    -e, --regexp=PATTERN use PATTERN for matching
    -f, --file=FILE obtain PATTERN from FILE
    -i, --ignore-case ignore case distinctions
    -w, --word-regexp force PATTERN to match only whole words
    -x, --line-regexp force PATTERN to match only whole lines
    -z, --null-data a data line ends in 0 byte, not newline

    Miscellaneous:
    -s, --no-messages suppress error messages
    -v, --invert-match select non-matching lines
    -V, --version print version information and exit
    --help display this help and exit
    --mmap ignored for backwards compatibility

    Output control:
    -m, --max-count=NUM stop after NUM matches
    -b, --byte-offset print the byte offset with output lines
    -n, --line-number print line number with output lines
    --line-buffered flush output on every line
    -H, --with-filename print the filename for each match
    -h, --no-filename suppress the prefixing filename on output
    --label=LABEL print LABEL as filename for standard input
    -o, --only-matching show only the part of a line matching PATTERN
    -q, --quiet, --silent suppress all normal output
    --binary-files=TYPE assume that binary files are TYPE;
    TYPE is `binary', `text', or `without-match'
    -a, --text equivalent to --binary-files=text
    -I equivalent to --binary-files=without-match
    -d, --directories=ACTION how to handle directories;
    ACTION is `read', `recurse', or `skip'
    -D, --devices=ACTION how to handle devices, FIFOs and sockets;
    ACTION is `read' or `skip'
    -R, -r, --recursive equivalent to --directories=recurse
    --include=FILE_PATTERN search only files that match FILE_PATTERN
    --exclude=FILE_PATTERN skip files and directories matching FILE_PATTERN
    --exclude-from=FILE skip files matching any file pattern from FILE
    --exclude-dir=PATTERN directories that match PATTERN will be skipped.
    -L, --files-without-match print only names of FILEs containing no match
    -l, --files-with-matches print only names of FILEs containing matches
    -c, --count print only a count of matching lines per FILE
    -T, --initial-tab make tabs line up (if needed)
    -Z, --null print 0 byte after FILE name

    Context control:
    -B, --before-context=NUM print NUM lines of leading context
    -A, --after-context=NUM print NUM lines of trailing context
    -C, --context=NUM print NUM lines of output context
    -NUM same as --context=NUM
    --color[=WHEN],
    --colour[=WHEN] use markers to highlight the matching strings;
    WHEN is `always', `never', or `auto'
    -U, --binary do not strip CR characters at EOL (MSDOS)
    -u, --unix-byte-offsets report offsets as if CRs were not there (MSDOS)

    `egrep' means `grep -E'. `fgrep' means `grep -F'.
    Direct invocation as either `egrep' or `fgrep' is deprecated.
    With no FILE, or when FILE is -, read standard input. If less than two FILEs
    are given, assume -h. Exit status is 0 if any line was selected, 1 otherwise;
    if any error occurs and -q was not given, the exit status is 2.

    标签: linux 
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