How to replace charachters

  • Thread starter Thread starter Wensi Peng
  • Start date Start date
W

Wensi Peng

Hello,

How to replace characters in a text file.
Like,

1/1/2004
2/1/2004
.....
12/1/2004

to

1/1/2005
2/1/2005
....
12/1/2005

Thanks,
Wensi
 
Wensi said:
Hello,

How to replace characters in a text file.
Like,

1/1/2004
2/1/2004
.....
12/1/2004

to

1/1/2005
2/1/2005
....
12/1/2005

Thanks,
Wensi
Dive into the syntax of regular expressions and get sed or an editor
with regexp capabilities.

sed "s|\(1*[0-9]/[1-3]*[0-9]/\)2004|\12005|" infile.txt >outfile.txt

Get a sed version here:
http://www.student.northpark.edu/pemente/sed/gsed407x.zip
Peek into Sed online documention:
http://www.delorie.com/gnu/docs/sed/sed.html

HTH
 
Hello,

How to replace characters in a text file.
Like,

1/1/2004
2/1/2004
....
12/1/2004

to

1/1/2005
2/1/2005
...
12/1/2005

Thanks,
Wensi

RepYr.bat Filename RepString WithString
In your case

RepYr filename.txt "/2004" "/2005"

@echo off
if {%3}=={} @echo Syntax: RepYr Filename RepString WithString&goto :EOF
if not exist %1 @echo RepYr - %1 NOT found.&goto :EOF
setlocal ENABLEDELAYEDEXPANSION
set work="%TEMP%\RepYr_%RANDOM%.TMP"
if exist %work% del /q %work%
copy %1 %work%
del /q %1
set file=%1
set RepString=%2
set RepString=%RepString:"=%
set WithString=%3
set WithString=%WithString:"=%
for /f "Tokens=*" %%a in ('type %work%') do (
set line=%%a
call set line=!line:%RepString%=%WithString%!
@Echo !line!>>%file%
)
endlocal


Jerold Schulman
Windows Server MVP
JSI, Inc.
http://www.jsiinc.com
 
ReplaceRegExp Filename SearchString ReplaceString
Quotes are required for spaces. Use 0xnn for wierd characters. Wildcard list is below..

On Error Resume Next
Set ShellApp = CreateObject("Shell.Application")
ReportErrors "Creating Shell.App"
set WshShell = WScript.CreateObject("WScript.Shell")
ReportErrors "Creating Wscript.Shell"
Set objArgs = WScript.Arguments
ReportErrors "Creating Wscript.Arg"
Set regEx = New RegExp
ReportErrors "Creating RegEx"
Set fso = CreateObject("Scripting.FileSystemObject")
ReportErrors "Creating FSO"

WshShell.RegWrite "HKLM\Software\Microsoft\Windows\CurrentVersion\App Paths\" & Wscript.ScriptName & "\", Chr(34) & Wscript.ScriptFullName & Chr(34)
WshShell.RegWrite "HKLM\Software\Microsoft\Windows\CurrentVersion\App Paths\" & Left(Wscript.ScriptName, Len(Wscript.ScriptName)-3) & "exe" & "\", Chr(34) & Wscript.ScriptFullName & Chr(34)
ReportErrors "Updating App Paths"
If objArgs.Count = 0 then
MsgBox "No parameters", 16, "Serenity's ReplaceRegExp"
ReportErrors "Help"
ElseIf objArgs.Count = 1 then
MsgBox "Only one parameter", 16, "Serenity's ReplaceRegExp"
ReportErrors "Help"
ElseIf objArgs.Count = 2 then
Set srcfile = fso.GetFile(objArgs(0))
ReportErrors "srcFile"
If err.number = 0 then Set TS = srcFile.OpenAsTextStream(1, 0)
If err.number <> 0 then
Msgbox err.description & " " & srcFile.path, 48, "Serenity's Search"
err.clear
else
ReportErrors "TS" & " " & srcFile.path
Src=ts.readall
If err.number = 62 then
err.clear
else
ReportErrors "ReadTS" & " " & srcFile.path
regEx.Pattern = objArgs(1)
regEx.IgnoreCase = True
regEx.Global = True
If regEx.Test(Src) = True then
Msgbox "Found in " & srcfile.path, 64, "Serenity's Search"
End If
End If
End If
ReportErrors "Check OK" & " " & srcFile.path

Elseif objArgs.count = 3 then
Set srcfile = fso.GetFile(objArgs(0))
ReportErrors "srcFile"
If err.number = 0 then Set TS = srcFile.OpenAsTextStream(1, 0)
If err.number <> 0 then
Msgbox err.description & " " & srcFile.path, 48, "Serenity's Search"
err.clear
else
ReportErrors "TS" & " " & srcFile.path
Src=ts.readall
If err.number = 62 then
err.clear
else
ReportErrors "ReadTS" & " " & srcFile.path
regEx.Pattern = objArgs(1)
regEx.IgnoreCase = True
regEx.Global = True
NewSrc= regEx.Replace(Src, objArgs(2))
If NewSrc<>Src then
Msgbox "Replacement made in " & srcfile.path, 64, "Serenity's Search"
TS.close
Set TS = srcFile.OpenAsTextStream(2, 0)
ts.write newsrc
ReportErrors "Writing file"
End If
End If
End If
ReportErrors "Check OK" & " " & srcFile.path


Else
MsgBox "Too many parameters", 16, "Serenity's ReplaceRegExp"
ReportErrors "Help"

ReportErrors "All Others"
End If

Sub ReportErrors(strModuleName)
If err.number<>0 then Msgbox "An unexpected error occurred. This dialog provides details on the error." & vbCRLF & vbCRLF & "Error Details " & vbCRLF & vbCRLF & "Script Name" & vbTab & Wscript.ScriptFullName & vbCRLF & "Module" & vbtab & vbTab & strModuleName & vbCRLF & "Error Number" & vbTab & err.number & vbCRLF & "Description" & vbTab & err.description, vbCritical + vbOKOnly, "Something unexpected"
Err.clear
End Sub

Pattern Property
See Also
Global Property | IgnoreCase Property

Applies To: RegExp Object

Requirements
Version 2

Sets or returns the regular expression pattern being searched for.

object.Pattern [= "searchstring"]Arguments
object
Required. Always a RegExp object variable.
searchstring
Optional. Regular string expression being searched for. May include any of the regular expression characters defined in the table in the Settings section.
Settings
Special characters and sequences are used in writing patterns for regular expressions. The following table describes and gives an example of the characters and sequences that can be used.

Character Description
\ Marks the next character as either a special character or a literal. For example, "n" matches the character "n". "\n" matches a newline character. The sequence "\\" matches "\" and "\(" matches "(".
^ Matches the beginning of input.
$ Matches the end of input.
* Matches the preceding character zero or more times. For example, "zo*" matches either "z" or "zoo".
+ Matches the preceding character one or more times. For example, "zo+" matches "zoo" but not "z".
? Matches the preceding character zero or one time. For example, "a?ve?" matches the "ve" in "never".
. Matches any single character except a newline character.
(pattern) Matches pattern and remembers the match. The matched substring can be retrieved from the resulting Matches collection, using Item [0]...[n]. To match parentheses characters ( ), use "\(" or "\)".
x|y Matches either x or y. For example, "z|wood" matches "z" or "wood". "(z|w)oo" matches "zoo" or "wood".
{n} n is a nonnegative integer. Matches exactly n times. For example, "o{2}" does not match the "o" in "Bob," but matches the first two o's in "foooood".
{n,} n is a nonnegative integer. Matches at least n times. For example, "o{2,}" does not match the "o" in "Bob" and matches all the o's in "foooood." "o{1,}" is equivalent to "o+". "o{0,}" is equivalent to "o*".
{n,m} m and n are nonnegative integers. Matches at least n and at most m times. For example, "o{1,3}" matches the first three o's in "fooooood." "o{0,1}" is equivalent to "o?".
[xyz] A character set. Matches any one of the enclosed characters. For example, "[abc]" matches the "a" in "plain".
[^xyz] A negative character set. Matches any character not enclosed. For example, "[^abc]" matches the "p" in "plain".
[a-z] A range of characters. Matches any character in the specified range. For example, "[a-z]" matches any lowercase alphabetic character in the range "a" through "z".
[^m-z] A negative range characters. Matches any character not in the specified range. For example, "[m-z]" matches any character not in the range "m" through "z".
\b Matches a word boundary, that is, the position between a word and a space. For example, "er\b" matches the "er" in "never" but not the "er" in "verb".
\B Matches a non-word boundary. "ea*r\B" matches the "ear" in "never early".
\d Matches a digit character. Equivalent to [0-9].
\D Matches a non-digit character. Equivalent to [^0-9].
\f Matches a form-feed character.
\n Matches a newline character.
\r Matches a carriage return character.
\s Matches any white space including space, tab, form-feed, etc. Equivalent to "[ \f\n\r\t\v]".
\S Matches any nonwhite space character. Equivalent to "[^ \f\n\r\t\v]".
\t Matches a tab character.
\v Matches a vertical tab character.
\w Matches any word character including underscore. Equivalent to "[A-Za-z0-9_]".
\W Matches any non-word character. Equivalent to "[^A-Za-z0-9_]".
\num Matches num, where num is a positive integer. A reference back to remembered matches. For example, "(.)\1" matches two consecutive identical characters.
\n Matches n, where n is an octal escape value. Octal escape values must be 1, 2, or 3 digits long. For example, "\11" and "\011" both match a tab character. "\0011" is the equivalent of "\001" & "1". Octal escape values must not exceed 256. If they do, only the first two digits comprise the expression. Allows ASCII codes to be used in regular expressions.
\xn Matches n, where n is a hexadecimal escape value. Hexadecimal escape values must be exactly two digits long. For example, "\x41" matches "A". "\x041" is equivalent to "\x04" & "1". Allows ASCII codes to be used in regular expressions.
 
If it just one file, open it with Notepad or Word and then

a. Press Ctrl-H
b. Enter "/2004" in Find what and "/2005" in Replace with (no quotes).
c. Press Alt-A
 
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