Clone detection failure？need help

[lyeeer]

I followed the steps what README.md say.
But when I installed the Deckard,I want to test the clone detection...
I create a "config" file in the path /home/xx/projects/Deckard,And the content is same as "config" in /sample,
The configuration file is as follows:

---

FILE_PATTERN='*.java' # used in the 'find' command below
#where are the source files?
SRC_DIR="src"

The following are for Deckard2's support for dot only####

PDG_DIR="ddgs" # used by Deckard2 for 'find $SRC_DIR -ipath "*/$PDG_DIR/$FILE_PATTERN"'
AST_DIR="asts" # each pdg should have an ast with the same name in a different folder
#where are node definition files? used by Deckard2
TYPE_FILE='/home/ly/projects/Deckard/testdata/deckard3/AstNodeTypeNamesIDs.txt'
RELEVANT_NODEFILE='/home/ly/projects/Deckard/testdata/deckard3/AstRelevantNodes.txt'
LEAF_NODEFILE='/home/ly/projects/Deckard/testdata/deckard3/AstLeafNodes.txt'
PARENT_NODEFILE='/home/ly/projects/Deckard/testdata/deckard3/AstParentNodes.txt'
#####The above are for Deckard2 only #####

#where is Deckard?
DECKARD_DIR="/home/ly/projects/Deckard"
#clone parameters; refer to paper.
MIN_TOKENS='30 50' # can be a sequence of integers
STRIDE='2 0' # can be a sequence of integers
SIMILARITY='1.0 0.95' # can be a sequence of values <= 1
#DISTANCE='0 0.70711 1.58114 2.236'

###########################################################
#Where to store result files?

#where to output generated vectors?
VECTOR_DIR="vectors"
#where to output detected clone clusters?
CLUSTER_DIR="clusters"
#where to output timing/debugging info?
TIME_DIR="times"

##########################################################
#where are several programs we need?

#where is the vector generator?
VGEN_EXEC="$DECKARD_DIR/src"
case $FILE_PATTERN in
*.dot )
VGEN_EXEC="$VGEN_EXEC/dot2d/dotvgen" ;; # for Deckard2 dot only
*.java )
VGEN_EXEC="$VGEN_EXEC/main/jvecgen" ;;
*.php )
VGEN_EXEC="$VGEN_EXEC/main/phpvecgen" ;;
*.c | *.h )
VGEN_EXEC="$VGEN_EXEC/main/cvecgen" ;;

• )
  echo "Error: invalid FILE_PATTERN: $FILE_PATTERN"
  VGEN_EXEC="$VGEN_EXEC/invalidvecgen" ;;
  esac
  #how to divide the vectors into groups?
  GROUPING_EXEC="$DECKARD_DIR/src/vgen/vgrouping/runvectorsort"
  #where is the lsh for vector clustering/querying?
  CLUSTER_EXEC="$DECKARD_DIR/src/lsh/bin/enumBuckets"
  QUERY_EXEC="$DECKARD_DIR/src/lsh/bin/queryBuckets"
  #how to post process clone groups?
  POSTPRO_EXEC="$DECKARD_DIR/scripts/clonedetect/post_process_groupfile"
  #how to transform source code html? Used by Deckard1 only
  SRC2HTM_EXEC=source-highlight
  SRC2HTM_OPTS=--line-number-ref

MAX_PROCS=8

GROUPING_S='30' # should be a single value
#GROUPING_D
#GROUPING_C

export DECKARD_DIR
export FILE_PATTERN
export SRC_DIR
export PDG_DIR
export AST_DIR

export TYPE_FILE
export RELEVANT_NODEFILE
export LEAF_NODEFILE
export PARENT_NODEFILE

export VECTOR_DIR
export TIME_DIR
export CLUSTER_DIR

export VGEN_EXEC
export GROUPING_EXEC
export CLUSTER_EXEC
export POSTPRO_EXEC
export SRC2HTM_EXEC
export SRC2HTM_OPTS

export MIN_TOKENS
export STRIDE
#export DISTANCE
export SIMILARITY
export GROUPING_S
export GROUPING_D
export GROUPING_C
export MAX_PROCS

---

But when I follow the next step to run,there will be a error.

---

`ly@ubuntu:~/projects/Deckard$ sh /home/ly/projects/Deckard/scripts/clonedetect/deckard.sh
DECKARD--A Tree-Based Code Clone Detection Toolkit.
/home/ly/projects/Deckard/scripts/clonedetect/deckard.sh: 4: /home/ly/projects/Deckard/scripts/clonedetect/deckard.sh: [[: not found

• Version Unknown. Missing README.
  Copyright (c) 2007-2018. University of California / Singapore Management University
  Distributed under the three-clause BSD license.

==== Configuration checking.../home/ly/projects/Deckard/scripts/clonedetect/deckard.sh: 81: /home/ly/projects/Deckard/scripts/clonedetect/configure: [[: not found
Error: no config file in current directory

---

I don't know how to fix it.....
Can someone give me some advice,Thx

[lyeeer]

The config file,I modified there two places:
1.#where are node definition files? used by Deckard2
TYPE_FILE='/home/ly/projects/Deckard/testdata/deckard3/AstNodeTypeNamesIDs.txt'
RELEVANT_NODEFILE='/home/ly/projects/Deckard/testdata/deckard3/AstRelevantNodes.txt'
LEAF_NODEFILE='/home/ly/projects/Deckard/testdata/deckard3/AstLeafNodes.txt'
PARENT_NODEFILE='/home/ly/projects/Deckard/testdata/deckard3/AstParentNodes.txt'

2.#where is Deckard?
DECKARD_DIR="/home/ly/projects/Deckard"

Is there something I haven't modified?

[lyeeer]

I solved this problem.
1.when I run,I used "sh" instead of "bash".../bin/bash is specified in the script,but I ignored.
2.I thought it was sign incompatibility,so I modified "[[ ]]" to "[ ]" according to the reported error message.(: 4: /home/ly/projects/Deckard/scripts/clonedetect/deckard.sh: [[: not found)

[Xiaoven]

#where are node definition files? used by Deckard2
TYPE_FILE='/home/ly/projects/Deckard/testdata/deckard3/AstNodeTypeNamesIDs.txt'
RELEVANT_NODEFILE='/home/ly/projects/Deckard/testdata/deckard3/AstRelevantNodes.txt'
LEAF_NODEFILE='/home/ly/projects/Deckard/testdata/deckard3/AstLeafNodes.txt'
PARENT_NODEFILE='/home/ly/projects/Deckard/testdata/deckard3/AstParentNodes.txt'

How to generate this files? Can I run Deckard2 without these variables?