Remove line from text file powershell

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Active 2 years, 8 months ago. Viewed k times. I am trying to just remove the first line of about text files before importing them. My current concept using pseudo-code: set-content file get-content unless line contains amount However, I can't seem to figure out how to do something like contains. Peter Mortensen Buddy Lindsey Buddy Lindsey 3, 6 6 gold badges 29 29 silver badges 42 42 bronze badges. Add a comment.

Active Oldest Votes. Michael Sorens Michael Sorens Richard Berg Richard Berg When I try to run this it seems that it errors out on the -skip. Could that maybe be from a different version? Also, if the files are all ascii then you might want to use set-content -enc ascii. If the encodings are mixed, then it gets trickier unless you don't care about the file encoding. TotalSeconds It returned: IIRC this is because the parentheses around the gc select means it reads the entire file into memory before piping it through.

Otherwise the open stream causes set-content to fail. For big files I think your approach is probably best — Alex. Andy Arismendi Andy Arismendi 47k 16 16 gold badges 97 97 silver badges bronze badges. Matt Nonso Nonso 11 1 1 bronze badge. Edward Thomas Edward Thomas 11 3 3 bronze badges. This removes trailing whitespace and blank lines from file. Luke Fowler Luke Fowler 73 1 1 silver badge 7 7 bronze badges.

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Viewed k times. Am I missing something? Peter Mortensen Add a comment. Active Oldest Votes. Samselvaprabu Samselvaprabu This is exactly what I wanted.

Thx Samselvaprabu! For large textfiles, this method is quite slow, Do you have any ideas how to improve the perfomance? Fourkeys Fourkeys 3 3 silver badges 4 4 bronze badges. Warning - I used this to attempt to update a file in-place and the file was deleted. If you want to match a literal character, you need to escape it When importing the data from the text file into a database, each line could introduce a blank record into the database and cause the problems you experienced with your application.

The reason for the roundabout procedure is that, after the text file is opened, a lock will remain on the file that prevents overwriting the file with new content. This is shown in the following image.

To rename the text file, use the Rename-Item cmdlet. You use the path parameter to specify the original file, and the newname parameter for the new name. One thing that is important to keep in mind is that the Rename-Item cmdlet does not have the ability to move a file in the rename operation. If you need to move a file, use the Move-Item cmdlet. Because you cannot move a file with the Rename-Item cmdlet, the inclusion of the path in the newname parameter is redundant.

The use of the parameter names themselves is also not required. You can also use the ren alias if you wish. The short version of the command is shown here:.

After the backup copy of the file has been created, use the Select-String cmdlet to look for Word characters. This regular expression pattern is documented on MSDN. The easiest way to open a text file and parse the contents is to use the Select-String cmdlet.

The Select-String cmdlet can be used to search for a wildcard character pattern or for a regular expression pattern.