How to recover (and remove) UNIX files

[Jeff Medcalf]

The following shell scripts are:

	rm -- remove files to compressed storage in /usr/tmp/.$USER
	unrm -- bring those files back
	rml -- list files "removed"
	rmclean -- clean up /usr/tmp/.$USER

rm, unrm, and rml were originally created by blknowle at uokmax.UUCP (Brad Knowles)
and were modified by jeffm at uokmax.UUCP (Jeff Medcalf).  rmclean was created by
jeffm at uokmax.UUCP.


#! /bin/sh
#This is rm.  It moves files to be removed to /usr/tmp/.$USER, then compresses
#them.  If /usr/tmp/.$USER does not exist, it will be created.  The -f option
#forces removal to be permanent.
#
name="rm"
sd="/usr/tmp/.$USER"
if test $# -lt 1
then echo "Usage: $name [-f] <filename> [<filenames>]" >&2
     exit 1
elif test "$1" = "-f"
then shift
    /bin/rm $* &
    exit 0
elif test ! -s $sd
then mkdir $sd
     chmod 700 $sd
fi
until test $# -eq 0
do
    if test ! -f $1
    then echo "$name: $1: not normal or nonexistent file." >&2
    else (/bin/cp $1 $sd ; /usr/local/compress $sd/$1 > /dev/null 2>&1 ; /bin/rm -f $1) &
    fi
    shift
done
exit 0
#END OF RM



#This is rml.  It simply displays files which were previously rm'd.
#This is better as an alias.
ls -lasig /usr/tmp/."$USER"| less
#END OF RML


#! /bin/sh
#This is unrm.  It will recover files previously rm'd.
name="unrm"
sd="/usr/tmp/.$USER"
if test $# -lt 1
then echo "Usage: $name <filename> [<filenames>]" >&2
     exit 1
fi
until test $# -eq 0
do
    if test -s $sd/$1.Z 
    then exist=2
    else exist=0
    fi
    if test -s $sd/$1 
    then exist=`expr $exist + 1`
    fi
    if test -f $sd/$1.Z 
    then normal=2
    else normal=0
    fi
    if test -f $sd/$1 
    then normal=`expr $normal + 1`
    fi
    if test $exist -eq 0 -o $normal -eq 0
	then echo "$name: $1: not normal or nonexistent file." >&2
    elif test $exist -eq 2 -a $normal -eq 2
	then (/usr/local/uncompress $sd/$1 > /dev/null 2>&1 ; /bin/cp $sd/$1 . ; /bin/rm $sd/$1) &
    elif test $exist -eq 1 -a $normal -eq 1
	then /bin/cp $sd/$1 .
	/bin/rm $sd/$1
    elif test $exist -eq 3 -o $normal -eq 3
	then echo "$name: cannot uncompress $1.Z because $1 already exists." >&2
	/bin/cp $sd/$1.Z .
	/bin/rm $sd/$1
	/bin/rm $sd/$1.Z
    else echo "$name: Something TRULY bizzarre has happened.  Report to jkmedcal at uokmax." >&2
	echo "argv[1] = $1, exist = $exist, normal = $normal" >&2
	exit 3
    fi
    shift
done
exit 0
#END OF UNRM


#! /bin/sh
#Permanently remove a file from /usr/tmp/.$USER
#The -z option looks for files with a .Z suffix
#The -all option completely removes the directory.
name="rmclean"
sd="/usr/tmp/.$USER"
if test $# -lt 1
then
echo "$name: usage: rmclean [-z | -all] filename [filenames]"
elif test ! -s $sd
then echo "$name: Directory $sd does not exist."
exit 1
fi
if test "$1" = "-z"
then
  isz=".Z"
  shift
else
  isz=""
fi
if test "$1" = "-all"
  then /bin/rm -r $sd
  echo "$sd is cleaned."
  exit 0
else
until test $# -eq 0
do
  if test -f $sd/$1$isz
    then /bin/rm -f $sd/$1$isz
  else echo "$name: File $sd/$1$isz does not exist."
    exit 1
  fi
shift
done
exit 0
fi
jeffm at uokmax.UUCP	Jeff Medcalf	jeffm at uokmax.ecn.uoknor.edu

Is she spoiled?
No, she always smells that way.