Re: [Bug-tar] transform with add-file seems broken

[Sergey Poznyakoff]

Stas Sergeev <address@hidden> ha escrit:

> $ tar cf a.tar a.txt
> $ tar rf a.tar --add-file=`pwd`/b.txt --transform=s,`pwd`/,aaa/,
> tar: Removing leading `/' from member names

Dominique has explained why that happens. Let me explain the rest.

> tar complains to leading slash.

In fact, it doesn't. I merely warns you that it is removing the leading
slash from pathnames being stored. You don't want it to do so. So what
you need is the -P (--absolute-names) option:

 tar -Prf a.tar --add-file=`pwd`/b.txt --transform=s,`pwd`/,aaa/,

For details, please see section 6.10.2 "Absolute File Names" of GNU tar
manual.

> Why wouldn't tar do its sanity checks and
> leading slash removal after the transform,

Because it provides a simpler way to do what you need.

Regards,
Sergey