Delete certain lines in a txt file via a batch file

Question

I have a generated txt file   This file has certain lines that are superfluous  and need to be removed   Each line that requires removal has one of two string in the line   ERROR  or  REFERENCE    These tokens may appear anywhere in the line   I would like to delete these lines  while retaining all other lines   So  if the txt file looks like this    Good Line of data bad line of C  Directory ERROR myFile dll Another good line of data bad line  REFERENCE  Good line   I would like the file to end up like this    Good Line of data Another good line of data Good line   TIA

User · Answer

If you have sed   sed -e   REFERENCE d  -e   ERROR d   FILENAME    Where FILENAME is the name of the text file with the good  amp  bad lines

User · Answer

You can accomplish the same solution as  paxdiablo s using just findstr by itself   There s no need to pipe multiple commands together   findstr  V  ERROR REFERENCE  infile txt  gt  outfile txt   Details of how this works     v finds lines that don t match the search string  same switch  paxdiablo uses  if the search string is in quotes  it performs an OR search  using each word  separator is a space  findstr can take an input file  you don t need to feed it the text using the  type  command    outfile txt  will send the results to the file outfile txt instead printing them to your console    Note that it will overwrite the file if it exists  Use     outfile txt  instead if you want to append   You might also consider adding the  i switch to do a case-insensitive match

User · Answer

If you have perl installed  then perl -i -n -e print unless m  ERROR REFERENCE    should do the trick

User · Answer

If you have perl installed  then perl -i -n -e print unless m  ERROR REFERENCE    should do the trick

User · Answer

Use the following   type file txt   findstr  v ERROR   findstr  v REFERENCE   This has the advantage of using standard tools in the Windows OS  rather than having to find and install sed awk perl and such   See the following transcript for it in operation    C   type file txt Good Line of data bad line of C  Directory ERROR myFile dll Another good line of data bad line  REFERENCE Good line  C   type file txt   findstr  v ERROR   findstr  v REFERENCE Good Line of data Another good line of data Good line

User · Answer

If you have sed   sed -e   REFERENCE d  -e   ERROR d   FILENAME    Where FILENAME is the name of the text file with the good  amp  bad lines

User · Answer

Use the following   type file txt   findstr  v ERROR   findstr  v REFERENCE   This has the advantage of using standard tools in the Windows OS  rather than having to find and install sed awk perl and such   See the following transcript for it in operation    C   type file txt Good Line of data bad line of C  Directory ERROR myFile dll Another good line of data bad line  REFERENCE Good line  C   type file txt   findstr  v ERROR   findstr  v REFERENCE Good Line of data Another good line of data Good line

User · Answer

If you have sed   sed -e   REFERENCE d  -e   ERROR d   FILENAME    Where FILENAME is the name of the text file with the good  amp  bad lines

User · Answer

If you have perl installed  then perl -i -n -e print unless m  ERROR REFERENCE    should do the trick

User · Answer

Use the following   type file txt   findstr  v ERROR   findstr  v REFERENCE   This has the advantage of using standard tools in the Windows OS  rather than having to find and install sed awk perl and such   See the following transcript for it in operation    C   type file txt Good Line of data bad line of C  Directory ERROR myFile dll Another good line of data bad line  REFERENCE Good line  C   type file txt   findstr  v ERROR   findstr  v REFERENCE Good Line of data Another good line of data Good line

User · Answer

If you have sed   sed -e   REFERENCE d  -e   ERROR d   FILENAME    Where FILENAME is the name of the text file with the good  amp  bad lines

User · Answer

Use the following   type file txt   findstr  v ERROR   findstr  v REFERENCE   This has the advantage of using standard tools in the Windows OS  rather than having to find and install sed awk perl and such   See the following transcript for it in operation    C   type file txt Good Line of data bad line of C  Directory ERROR myFile dll Another good line of data bad line  REFERENCE Good line  C   type file txt   findstr  v ERROR   findstr  v REFERENCE Good Line of data Another good line of data Good line

User · Answer

You can accomplish the same solution as  paxdiablo s using just findstr by itself   There s no need to pipe multiple commands together   findstr  V  ERROR REFERENCE  infile txt  gt  outfile txt   Details of how this works     v finds lines that don t match the search string  same switch  paxdiablo uses  if the search string is in quotes  it performs an OR search  using each word  separator is a space  findstr can take an input file  you don t need to feed it the text using the  type  command    outfile txt  will send the results to the file outfile txt instead printing them to your console    Note that it will overwrite the file if it exists  Use     outfile txt  instead if you want to append   You might also consider adding the  i switch to do a case-insensitive match

User · Answer

If you have perl installed  then perl -i -n -e print unless m  ERROR REFERENCE    should do the trick

[string] Delete certain lines in a txt file via a batch file

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