这个例子说的好啊!!! When a namespace is defined on a node in the XML document, an XPath expressions must use a namespace, even if it is the default namespace for the XML document/node. For example, suppose we have an XML document <help xmlns="http://www.r-project.org/Rd"><topic...
Surround the matched (non-empty) strings, matching lines, context lines, file names, line numbers, byte offsets, and separators (for fields and groups of context lines) with escape sequences to display them in color on the terminal. The colors are defined by the environment variable GREP_COL...
--color[=WHEN], --colour[=WHEN] Surround(围绕) the matched (non-empty) strings, matching lines, context lines, file names, line numbers, byte offsets, and separators (for fields and groups of context lines) withescape sequences(转义序列???) to display them in color on the terminal. T...
--color[=WHEN], --colour[=WHEN] Surround the matched (non-empty) strings, matching lines, context lines, file names, line numbers, byte offsets, and separators (for fields and groups of context lines) with escape sequences to display them in color on the terminal. The colors are defined...
is used to colour the matching substrings, or if --only-matching, --file-offsets, or --line-offsets is used to output only the part of the line that matched (either shown literally, or as an offset), scanning resumes immediately following the match, so that further matches on the sam...
--line-buffered flush output on every line -H, --with-filename print file name with output lines -h, --no-filename suppress the file name prefix on output --label=LABEL use LABEL as the standard input file name prefix -o, --only-matching show only nonempty parts of lines that match...
In addition, two variant programs egrep and fgrep are available. egrep is the same as grep -E. fgrep is the same as grep -F. Direct invocation as either egrep or fgrep is deprecated, but is provided to allow historical applications that rely on them to run ...
1 Extracting a substring between two strings on Linux 1 Regex Pattern matching and extraction using grep 0 Select a string between two others strings in a file BASH 0 How to get string between two characters in bash 1 how to get string between two strings -1 Delete specific of word...
Output control:-m,--max-count=NUMstop afterNUMmatches-b,--byte-offset print the byte offsetwithoutput lines-n,--line-number print line numberwithoutput lines--line-buffered flush output on every line-H,--with-filename print the file nameforeach match-h,--no-filename suppress the file ...
--no-filename suppress the file name prefix on output--label=LABEL use LABEL as the standard input file name prefix-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...