做一个代码,但如果它是,继续,像这样: while [ -z $(cat File.txt | grep "string" ) ] #Checking if file doesn't contain string do echo "No matching string!, trying again" #If it doesn't, run this code done echo "String matched!" ...
To retrieve the names of the files that contain a word or string of characters and exclude the actual lines, use the-loperator: grep -l 'server' * The output shows the filenames that containserverbut does not print the corresponding lines. grepdoes not search subdirectories it encounters b...
This is needed on terminals on which EL is not supported. It is otherwise useful on terminals for which the back_color_erase (bce) boolean terminfo capability does not apply, when the chosen highlight colors do not affect the background, or when EL is too slow or causes too much flicker...
grep - print lines matching a patterngrep [OPTIONS] PATTERN [FILE...] grep [OPTIONS] [-e PATTERN | -f FILE] [FILE...]
我有这个 if [[ ! $newstring == *['!'@#\$%^\&*()_+]* ]] then echo Error - Does not contain One Special Character - $newstring i=$((i+1)) fi 哪个检查字符串是否只有一个来自银行的单个字符,我想检查它是否有多个字符?最好的办法是什么? 浏览6提问于2014-10-31得票数 1 回答已采...
The string search should only be considered a match if it does not contain a wildcard character (*). As an illustration: grep -w name1 filename it returns exactly what I want: file1 #ignores file10 & file11 as no wildcard used ...
>Select-String-Path"File2.txt"-Pattern"Hello"-NotMatch As you can see, the above-provided command displayed all strings except “Hello” from the “File2.txt”: It is observed that the line printed on the console does not contain the “Hello” word. ...
For example, if I want to print every line that does not contain theerrorterm, then I will use the following: grep -v error error.log 4. Display the number of matched lines To display the number of matched lines, all you have to do is use the-nflag as shown: ...
可以看到,当前目录下有一个 testfile 文件,它里面只有一行 "This is a test string." 字符串。 grep "string" testfile 命令会在 testfile 文件中查找 "string" 字符串,找到后打印出对应的行。 grep "string" "testfile" 命令也是在 testfile 文件中查找 "string" 字符串,即使用双引号把 testfile 括起来...
The LABEL used with --filter-magic-label and --filter has no specific meaning; any name or string that does not contain a : or , may be used.🔝 Back to table of contentsSearching and displaying binary files with -U, -W, and -X...