GNU bug report logs - #20572
bug about sed when use -i

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From: Norihiro Tanaka <noritnk <at> kcn.ne.jp>
To: Lu Qin <luq.java <at> gmail.com>
Cc: 20572 <at> debbugs.gnu.org
Subject: bug#20572: bug about sed when use -i
Date: Fri, 15 May 2015 07:39:44 +0900

On Thu, 14 May 2015 17:00:58 +0800
Lu Qin <luq.java <at> gmail.com> wrote:

> when I use sed like this :
> 
> sed -i  -e 's/\(public class TInfo .*\)$/\1\
> \
>   private static final long serialVersionUID = -4659975753252858243l; \/\/ See ACCUMULO-3132\
> /' src/main/java/org/apache/accumulo/trace/thrift/TInfo.java
> 
> It will create a file name TInfo.java-e as a backup,but the -e is not the backup extension I use.
> 
> 
> If I use it like this:
> sed -i ''  -e 's/\(public class TInfo .*\)$/\1\
> \
>   private static final long serialVersionUID = -4659975753252858243l; \/\/ See ACCUMULO-3132\
> /' src/main/java/org/apache/accumulo/trace/thrift/TInfo.java
> 
> It will be work ok and not create a backup file what I want.

$ tar xzf accumulo-1.6.2-src.tar.gz
$ cd accumulo-1.6.2/trace

$ sed --version
sed (GNU sed) 4.2.2
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Jay Fenlason, Tom Lord, Ken Pizzini,
and Paolo Bonzini.
GNU sed home page: <http://www.gnu.org/software/sed/>.
General help using GNU software: <http://www.gnu.org/gethelp/>.
E-mail bug reports to: <bug-sed <at> gnu.org>.
Be sure to include the word ``sed'' somewhere in the ``Subject:'' field.

$ sed -i -e 's/\(public class TInfo .*\)$/\1\
\
  private static final long serialVersionUID = -4659975753252858243l; \/\/ See ACCUMULO-3132\
/' src/main/java/org/apache/accumulo/trace/thrift/TInfo.java

$ ls src/main/java/org/apache/accumulo/trace/thrift/TInfo.java*
src/main/java/org/apache/accumulo/trace/thrift/TInfo.java

$ sed -i ''  -e 's/\(public class TInfo .*\)$/\1\
\
  private static final long serialVersionUID = -4659975753252858243l; \/\/ See ACCUMULO-3132\
/' src/main/java/org/apache/accumulo/trace/thrift/TInfo.java
sed: can't read : No such file or directory

$ ls src/main/java/org/apache/accumulo/trace/thrift/TInfo.java*
src/main/java/org/apache/accumulo/trace/thrift/TInfo.java


I see that it is not a bug.

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