To show the line number that contains your string, use the -n switch: $ grep -n string filename Show lines before and after If you need a little more context to the grep output, you can show one line before and after your specified search string with the -c switch: $ grep -c 1 ...
I would like togrepfor a string, but also show the preceding five lines and the following five lines as well as the matched line. How would I be able to do this? ForBSDorGNUgrepyou can use-B numto set how many lines before the match and-A numfor the number of lines after the m...
To demonstrate this, I will useERRORas a search pattern, and it will show matching patterns irrespective of case sensitivity: grep -i ERROR error.log 2. Shownlines before and after the matching lines By default, the grep command only prints the matching lines, but sometimes you want the con...
If we are looking at some texts upper and lower lines we can provide the count of lines to be shown. It will show the surrounding lines too. We will use-nCoption with the number of neighbor lines we want to list or show. In the following example, we want to show a single line aro...
$ grep -A 3 -i "example" demo_text Example to show the difference between WORD and word * 192.168.1.1 - single WORD * 192.168.1.1 - seven words. -B 是在匹配之前打印指定的 N 行的选项。 Syntax: grep -B"string" FILENAME 当您可以选择在匹配后显示 N 行时,您可以使用 -B 选项。
To find lines with diner implying good in myfile.txt (that is, show lines with good without diner and show lines with diner but only those with good, which is logically implied!):ug -% 'good|-diner' myfile.txt ug -e good --not diner myfile.txt ...
grep (global search regular expression(RE) and print out the line,全面搜索正则表达式并把行打印出来)是一种强大的文本搜索工具,它能使用正则表达式搜索文本,并把匹配的行打印出来。Unix的grep家族包括grep、egrep和fgrep。egrep和fgrep的命令只跟grep有很小不同。egrep是grep的扩展,支持更多的re元字符,fgrep就是...
If the input is standard input from a regular file, and NUM matching lines are output, grep ensures that the standard input is positioned to just after the last matching line before exiting, regardless of the presence of trailing context lines. This enables a calling process to resume a ...
--help display this help text and exit 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-fi...
reverse the sort order (largest last instead of first) -t NUM 显示前N条just show the top n queries -a 不要将SQL中数字转换成N,字符串转换成S。don't abstract all numbers to N and strings to 'S' -n NUM abstract numbers with at least n digits within names -g PATTERN 正则匹配;grep: ...