expr match "$string" '\($substring\)' 从$string的开始位置提取$substring,$substring是正则表达式. expr "$string" : '\($substring\)' 从$string的开始位置提取$substring,$substring是正则表达式. expr match "$string" '.*\($substring\)' 从$string的结尾提取$substring,$substring是正则表达式. expr ...
使用命令 expr match ${string} $substring,表示在string字符串的开头匹配substring字符串,返回匹配到的substring字符串的长度。若string开头匹配不到则返回0,其中substring可以是字符串也可以是正则表达式。 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 expr...
string to System.Management.Automation.ScriptBlock Cannot use Set-Acl properly despite being file owner and being a member of Administrators Group. Cannot validate argument on parameter 'Name'. The argument is null or empty. Provide an argument that is not null or empty, and then try the ...
$result = ($i -split "\s+")[0] + " " + ($i -split "\s+")[3] #中间加条件即可,这是是打印第一列和第三列,合在一行,以空格为分隔符。 Write-Host $result } 在PowerShell 中,处理文本字符时,常用的截取命令有以下几个: #1 Select-String:用于从文本中选择匹配的字符串。 $text = "Hell...
-Split <String> -Split (<String[]>) <String> -Split <Delimiter>[,<Max-substrings>[,"<Options>"]] <String> -Split {<ScriptBlock>} [,<Max-substrings>] You can substitute-iSplitor-cSplitfor-splitin any binary Split statement (a Split statement that includes a delimiter or script block...
PowerShell Script: 1 2 3 4 $Inputstring="Sonali Bhatt is Database Administrator" $CharArray=$InputString.Split(" ") $CharArray[0] $CharArray[4] Output: Sonali Administrator Following is the output: As you can see, we have assigned “Sonali Bhatt is a Database Administrator” string to...
This method splits the $string where it finds the first occurrence of the specified separator (whitespace in this case) and stores the first substring in $var1_string and the second substring in $var2_string variables. Similarly, we can use this method to split $string into multiple variable...
The final operator, substring expansion, returns sections of a string. We can use it to “pick out” parts of a string that are of interest. Assume that our script is able to assign lines of the sorted list, one at a time, to the variable album_line. If we want to print out just...
This article illustrates how we can extract a substring from a string on PowerShell. A substring is simply a part of a string. We can create a substring in PowerShell using the Substring() and split() methods. For example, if we have the string Delftstack.com, Delftstack is a substring...
Restriction:If the tagged script is being run with automatic conversion enabled, the code page of the locale must be SBCS. Options If the first argument (argument 0) to the tcsh shell is - (hyphen), then it is a login shell. You can also specify the login shell by invoking the tcsh ...