IT1*1*EA*VN*ABC@SAC*X*500@REF*ZZ*BAR@ The above only reads 3@-separated strings at a time into memory and breaks down the input into these records and fields: $ awk -v RS='([^@]*@){3}' -F'@' 'RT{$0=RT; print; for (i=1; i<=NF; i++) print "\t" i, $i}' f...
- 【重要】Search for an exact string (disables regular expressions): grep --fixed-strings "exact_string" path/to/file - Search for a pattern in all files recursively in a directory, showing line numbers of matches, ignoring binary files: grep --recursive --line-number --binary-files=withou...
--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...
Obtain patterns from FILE, one per line. If this option is used multiple times or is combined with the -e (--regexp) option, search for all patterns given. The empty file contains zero patterns, and therefore matches nothing. 从文件中获取模式,每行一个。如果此选项多次使用或与-e(——reg...
(Search Strings Case-Insensitive) By default grep searches case sensitive which means upper and lower case chars are interpreted as different. If we are looking for ahostnamein a file it is not important uppercase and lowercase so we will turn off case sensitivity for grep. We will provide-...
General Output Control -c, --count Suppress normal output; instead print a count of matching lines for each input file. With the -v, --invert-match option (see below), count non-matching lines. --color[=WHEN], --colour[=WHEN] Surround the matched (non-empty) strings, matching lines...
There is no short form for this option. -F, --fixed-strings Interpret each pattern as a list of fixed strings, separated by newlines, instead of as a regular SunOS 5.11 Last change: 5 User Commands PCREGREP(1) expression. The -w (match as a word) and -x (match whole line) ...
This is very useful for searching a bunch of files at the same time. The output also shows you the name of the file containing the matching strings! I personally like this solution with “-R” for searching through a set of symbolic links at once, to save time. ...
Thank You for your very quick reply. My question was not piping and hard coding every string , as i mentioned multiple strings, i was looking for something in likes of grep -F ‘string1 string2 string3 string4 ….. stringn’ filename ...
For example, -o3 -o1 -o3 causes the substrings matched by capturing parentheses 3 and 1 and then 3 again to be output. By default, there is no separator (but see the next option). −−om−separator=text Specify a separating string for multiple occurrences of −o. The default is...