爲什麼獲取文件列表的字符還會返回當前目錄的文件和文件夾？

Question

我呼籲fileok.sh獲取文件based in this response的所有不同的字符以下腳本：

#!/bin/bash 

function get_ascii() { 
    LC_CTYPE=C printf '%d' "'$1" 
} 

myfile="$1" 

min_ascii=255 
max_ascii=0 
i=0 

arrchar=($(fold -w1 "$myfile" | sort -u)) 
arrasc=() 

for c in "${arrchar[@]}"; do 
    ascii=$(get_ascii "$c") 
    echo "$i: $ascii $c" 

    if [[ "$ascii" -gt "$max_ascii" ]]; then 
     max_ascii="$ascii" 
    fi 
    if [[ "$ascii" -lt "$min_ascii" ]]; then 
     min_ascii="$ascii" 
    fi 

    let i++ 
    arrasc+=("$ascii") 
done 

echo 
echo "CHARS: ${arrchar[*]}" 
echo 
echo "ASCII: ${arrasc[*]}" 
echo 
echo "RANGE: $min_ascii-$max_ascii" 
echo 

這是結果：

0: 8 
1: 8 ▒ 
2: 8 - 
3: 8 & 
4: 8 ▒ 
5: 8 ▒ 
6: 8 a 
7: 8 ▒ 
8: 8 ▒ 
9: 8 b 
10: 8 ▒ 
11: 8 e 
12: 8 ▒ 
13: 8 ▒ 
14: 8 j 
15: 8 ▒ 
16: 8 ▒ 
17: 96 ` 
18: 60 < 
19: 166 ▒ 
20: 176 ▒ 
21: 45 - 
22: 47/
23: 46 . 
24: 64 @ 
25: 100 freefic.sh 
26: 100 freedoa.sh 
27: 100 ret.sh 
28: 69 file1.txt 
29: 102 fileok.sh 
30: 104 hs_err_pid21874.log 
31: 104 hs_err_pid40826.log 
32: 106 ref_lista2.txt 
33: 108 lista_jcl.txt 
34: 112 prueba 
35: 83 myfolder2 
36: 116 tsoioa_prueba.sh 
37: 116 tsoioa.sh 
38: 119 workspace 
39: 88 rxpress2 
40: 88 rxpress22 
41: 88 rxpress23 
42: 88 rxpress24 
43: 88 rxpress2434 
44: 88 rxpress24543 
45: 88 rxpress244534 
46: 88 rxpress243453 
47: 88 rxpress24345345 
48: 88 rxpress24345345 
49: 88 rxpress2434555 
50: 38 & 
51: 35 # 
52: 37 % 
53: 1 
54: 2 
55: 3 
56: 4 
57: 12 

58: 16 
59: 17 
60: 18 
61: 19 
62: 20 
63: 22 
64: 23 
65: 24 
66: 25 
67: 27 
8: 28 
69: 127 
70: 128 ▒ 
71: 129 ▒ 
72: 129 % 
73: 130 ▒ 
74: 131 ▒ 
75: 132 ▒ 
76: 133 ▒ 
77: 134 ▒ 
78: 135 ▒ 
79: 136 ▒ 
80: 137 ▒ 
81: 140 ▒ 
82: 141 ▒ 
83: 144 ▒ 
84: 145 ▒ 
85: 147 ▒ 
86: 148 ▒ 
87: 149 ▒ 
88: 150 ▒ 
89: 151 ▒ 
90: 152 ▒ 
91: 153 ▒ 
92: 156 ▒ 
93: 157 ▒ 
94: 48 0 
95: 49 1 
96: 50 2 
97: 51 3 
98: 52 4 
99: 53 5 
100: 54 6 
101: 55 7 
102: 56 8 
103: 57 9 
104: 97 a 
105: 65 A 
106: 225 ▒ 
107: 193 ▒ 
108: 224 ▒ 
109: 192 ▒ 
110: 226 ▒ 
111: 194 ▒ 
112: 229 ▒ 
113: 197 ▒ 
114: 228 ▒ 
115: 196 ▒ 
116: 227 ▒ 
117: 195 ▒ 
118: 230 ▒ 
119: 132 ▒ 
120: 98 b 
121: 66 B 
122: 99 c 
123: 67 C 
124: 231 ▒ 
125: 199 ▒ 
126: 100 d 
127: 68 D 
128: 240 ▒ 
129: 101 e 
130: 69 E 
131: 233 ▒ 
132: 201 ▒ 
133: 232 ▒ 
134: 200 ▒ 
135: 234 ▒ 
136: 202 ▒ 
137: 235 ▒ 
138: 203 ▒ 
139: 102 f 
140: 70 F 
141: 103 g 
142: 71 G 
143: 104 h 
144: 72 H 
145: 105 i 
146: 73 I 
147: 237 ▒ 
148: 205 ▒ 
149: 236 ▒ 
150: 238 ▒ 
151: 206 ▒ 
152: 239 ▒ 
153: 207 ▒ 
154: 106 j 
155: 74 J 
156: 107 k 
157: 75 K 
158: 108 l 
159: 76 L 
160: 109 m 
161: 77 M 
162: 110 n 
163: 78 N 
164: 111 o 
165: 79 O 
166: 248 ▒ 
167: 216 ▒ 
168: 112 p 
169: 80 P 
170: 113 q 
171: 81 Q 
172: 114 r 
173: 82 R 
174: 83 S 
175: 223 ▒ 
176: 84 T 
177: 85 U 
178: 86 V 
179: 87 W 
180: 88 X 
181: 89 Y 
182: 90 Z 
183: 160 ▒ 

CHARS:▒-&▒▒a▒▒b▒e▒▒j▒▒ ` < ▒ ▒ -/. @ dchfic.sh dchioa.sh dfsalida.sh ED14.LSEG.V1312 fileok.sh hs_err_pid21874.log hs_err_pid40826.log jcl_lista2.txt lista_jcl.txt prueba SISIB.XPREP.JCL tsoioa_prueba.sh tsoioa.sh workspace XR05.UNLCFT.X130823N XR05.UNLCFT.X130823N.D207 XR05.UNLCTF.X130823N XR05.UNLIRS.X130823N XR05.UNLIRS.X130823N.D118 XR05.UNLVUI.X130822N XR15.SYSDISC.LOAD3 XR15.SYSERR.LOAD2 XR15.SYSERR.LOAD3 XR15.SYSMAP.LOAD3 XR15.SYSUT1.LOAD3 & # % 
           ▒ ▒ % ▒ ▒ ▒ ▒ ▒ ▒ ▒ ▒ ▒ ▒ ▒ ▒ ▒ ▒ ▒ ▒ ▒ ▒ ▒ ▒ ▒ 0 1 2 3 4 5 6 7 8 9 a A ▒ ▒ ▒ ▒ ▒ ▒ ▒ ▒ ▒ ▒ ▒ ▒ ▒ ▒ b B c C ▒ ▒ d D ▒ e E ▒ ▒ ▒ ▒ ▒ ▒ ▒ ▒ f F g G h H i I ▒ ▒ ▒ ▒ ▒ ▒ ▒ j J k K l L m M n N o O ▒ ▒ p P q Q r R S ▒ T U V W X Y Z ▒ 

ASCII: 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 96 60 166 176 45 47 46 64 100 100 100 69 102 104 104 106 108 112 83 116 116 119 88 88 88 88 88 88 88 88 88 88 88 38 35 37 1 2 3 4 12 16 17 18 19 20 22 23 24 25 27 28 127 128 129 129 130 131 132 133 134 135 136 137 140 141 144 145 147 148 149 150 151 152 153 156 157 48 49 50 51 52 53 54 55 56 57 97 65 225 193 224 192 226 194 229 197 228 196 227 195 230 132 98 66 99 67 231 199 100 68 240 101 69 233 201 232 200 234 202 235 203 102 70 103 71 104 72 105 73 237 205 236 238 206 239 207 106 74 107 75 108 76 109 77 110 78 111 79 248 216 112 80 113 81 114 82 83 223 84 85 86 87 88 89 90 160 

RANGE: 1-248 

其中：

25: 100 freefic.sh 
26: 100 freedoa.sh 
27: 100 ret.sh 
28: 69 file1.txt 
29: 102 fileok.sh 
30: 104 hs_err_pid21874.log 
31: 104 hs_err_pid40826.log 
32: 106 ref_lista2.txt 
33: 108 lista_jcl.txt 
34: 112 prueba 
35: 83 myfolder2 
36: 116 tsoioa_prueba.sh 
37: 116 tsoioa.sh 
38: 119 workspace 
39: 88 rxpress2 
40: 88 rxpress22 
41: 88 rxpress23 
42: 88 rxpress24 
43: 88 rxpress2434 
44: 88 rxpress24543 
45: 88 rxpress244534 
46: 88 rxpress243453 
47: 88 rxpress24345345 
48: 88 rxpress24345345 
49: 88 rxpress2434555 

是我執行腳本的當前目錄的文件。 我錯過了什麼？爲什麼這樣做會返回當前目錄的一個ls？

可能是一個unicode字符嗎？

Answer 1

問題是這樣分配

arrchar=($(fold -w1 "$myfile" | sort -u)) 

，你依靠分詞來填充每個字符數組，遺憾的是它也擴大*因此，如果您對相關文件中包含一個星號的陣列將列出當前目錄中的文件而不是文字*。

你可以例如暫時禁用通配符避免這種情況，例如

set -o noglob 
arrchar=($(fold -w1 "$myfile" | sort -u)) 
set +o noglob 

，或者使用read經由進程替換直接讀入該陣列：

read -a arrchar -d '' < <(fold -w1 t.txt | sort -u) 

Answer 2

它肯定與*字符有關。一種解決方法是在空目錄內運行腳本，即。

mkdir empty_dir 
cd empty_dir 
sh /path/to/fileok.sh /path/to/input_file 

Answer 3

如果*字符的位置並不重要，這一個確實的作業：

#!/bin/bash 

function get_ascii() { 
    LC_CTYPE=C printf '%d' "'$1" 
} 

myfile="$1" 

min_ascii=255 
max_ascii=0 
i=0 

test -n "`grep '*' "$myfile"`" && CONTAINSSTAR=true 
arrchar=($(fold -w1 "$myfile" | grep -v '*'|sort -u)) 
arrasc=() 



for c in "${arrchar[@]}"; do 
    ascii=$(get_ascii "$c") 
    echo "$i: $ascii $c" 

    if [[ "$ascii" -gt "$max_ascii" ]]; then 
     max_ascii="$ascii" 
    fi 
    if [[ "$ascii" -lt "$min_ascii" ]]; then 
     min_ascii="$ascii" 
    fi 

    let i++ 
    arrasc+=("$ascii") 
done 

if [ "$CONTAINSSTAR" == "true" ];then 
    echo -e "$i: 42 *" 
    echo 
    echo -e "CHARS: ${arrchar[*]} *" 
    echo 
    echo "ASCII: ${arrasc[*]} 42" 
else 
    echo 
    echo "CHARS: ${arrchar[*]}" 
    echo 
    echo "ASCII: ${arrasc[*]}" 

fi 
echo 
echo "RANGE: $min_ascii-$max_ascii" 
echo