The pipe, |, is a special-character in regex (meaning “or”) and you’ll have to escape it with a \. Using your current regex: \|.*$ I’ve tried this in Notepad++, as you’ve mentioned, and it appears to work well.
cat yourfile.txt | tr -dc ‘[:alnum:]\n\r’ | tr ‘[:upper:]’ ‘[:lower:]’ The first tr deletes special characters. d means delete, c means complement (invert the character set). So, -dc means delete all characters except those specified. The \n and \r are included to preserve linux or windows style newlines, which I assume you want. The second …
You’ll need to use a look behind assertion so that it isn’t included in the match: grep -Po ‘(?<=scheme_version”:)[0-9]+’
It indicates that the subpattern is a non-capture subpattern. That means whatever is matched in (?:\w+\s), even though it’s enclosed by () it won’t appear in the list of matches, only (\w+) will. You’re still looking for a specific pattern (in this case, a single whitespace character following at least one word), but you don’t …
You can reference your named capture groups by utilizing map as follows: package main import ( “fmt” “regexp” ) var myExp = regexp.MustCompile(`(?P<first>\d+)\.(\d+).(?P<second>\d+)`) func main() { match := myExp.FindStringSubmatch(“1234.5678.9”) result := make(map[string]string) for i, name := range myExp.SubexpNames() { if i != 0 && name != “” { result[name] = match[i] } } fmt.Printf(“by name: …
If you want to provide the pattern through a variable, you need to use ~ to match against it: awk -v pat=”$pattern” ‘$0 ~ pat’ In your case, the problem does not have to do with -F. The problem is the usage of /pat/ when you want pat to be a variable. If you say …
Find: ([A-Z])([A-Z]+)\b Replace: $1\L$2 Make sure case sensitivity is on (Alt + C) and preserve case is off (Alt + A).
As of vscode v1.75 there is a Transform to Camel Case command. So you could Find: (_[a-z]+)+ Alt+Enter will select all those trigger the Transform to Camel Case command Pretty easy. In the 1.47 Insiders Build support for the replace case modifiers (\L, \l, \U, \u) has been added to vscode. And so should be …
tr’s -c (complement) flag may be an option echo “Â10.41.89.50-._ ” | tr -cd ‘[:alnum:]._-‘
Removing control symbols only: :%s/[[:cntrl:]]//g Removing non-printable characters (note that in versions prior to ~8.1.1 this removes non-ASCII characters also): :%s/[^[:print:]]//g The difference between them could be seen if you have some non-printable-non-control characters, e.g. zero-width space: