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Top Forums UNIX for Advanced & Expert Users Get rid of junk character in a file Post 302131835 by robotronic on Tuesday 14th of August 2007 01:59:26 AM
Old 08-14-2007
Assume you have a file named "file.txt", containing only one of your "dirty" line. First, you have to determine the octal code of the junk character, which is the 15th of the line:

Code:
od -b file.txt

0000000 063 063 065 066 060 060 061 060 066 070 066 107 120 124 302 243
0000020 061 062 060 066 060 060 107 102 120 107 102 120 061 060 060 070
0000040 062 060 060 067 104 123 012
0000047

Now that you have the octal representation of the character you want to remove, try:

Code:
cat file.txt | tr -d '\302'

Bye Smilie
 

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ASCII(7)					       BSD Miscellaneous Information Manual						  ASCII(7)

NAME
ascii -- octal, hexadecimal and decimal ASCII character sets DESCRIPTION
The octal set: 000 nul 001 soh 002 stx 003 etx 004 eot 005 enq 006 ack 007 bel 010 bs 011 ht 012 nl 013 vt 014 np 015 cr 016 so 017 si 020 dle 021 dc1 022 dc2 023 dc3 024 dc4 025 nak 026 syn 027 etb 030 can 031 em 032 sub 033 esc 034 fs 035 gs 036 rs 037 us 040 sp 041 ! 042 " 043 # 044 $ 045 % 046 & 047 ' 050 ( 051 ) 052 * 053 + 054 , 055 - 056 . 057 / 060 0 061 1 062 2 063 3 064 4 065 5 066 6 067 7 070 8 071 9 072 : 073 ; 074 < 075 = 076 > 077 ? 100 @ 101 A 102 B 103 C 104 D 105 E 106 F 107 G 110 H 111 I 112 J 113 K 114 L 115 M 116 N 117 O 120 P 121 Q 122 R 123 S 124 T 125 U 126 V 127 W 130 X 131 Y 132 Z 133 [ 134 135 ] 136 ^ 137 _ 140 ` 141 a 142 b 143 c 144 d 145 e 146 f 147 g 150 h 151 i 152 j 153 k 154 l 155 m 156 n 157 o 160 p 161 q 162 r 163 s 164 t 165 u 166 v 167 w 170 x 171 y 172 z 173 { 174 | 175 } 176 ~ 177 del The hexadecimal set: 00 nul 01 soh 02 stx 03 etx 04 eot 05 enq 06 ack 07 bel 08 bs 09 ht 0a nl 0b vt 0c np 0d cr 0e so 0f si 10 dle 11 dc1 12 dc2 13 dc3 14 dc4 15 nak 16 syn 17 etb 18 can 19 em 1a sub 1b esc 1c fs 1d gs 1e rs 1f us 20 sp 21 ! 22 " 23 # 24 $ 25 % 26 & 27 ' 28 ( 29 ) 2a * 2b + 2c , 2d - 2e . 2f / 30 0 31 1 32 2 33 3 34 4 35 5 36 6 37 7 38 8 39 9 3a : 3b ; 3c < 3d = 3e > 3f ? 40 @ 41 A 42 B 43 C 44 D 45 E 46 F 47 G 48 H 49 I 4a J 4b K 4c L 4d M 4e N 4f O 50 P 51 Q 52 R 53 S 54 T 55 U 56 V 57 W 58 X 59 Y 5a Z 5b [ 5c 5d ] 5e ^ 5f _ 60 ` 61 a 62 b 63 c 64 d 65 e 66 f 67 g 68 h 69 i 6a j 6b k 6c l 6d m 6e n 6f o 70 p 71 q 72 r 73 s 74 t 75 u 76 v 77 w 78 x 79 y 7a z 7b { 7c | 7d } 7e ~ 7f del The decimal set: 0 nul 1 soh 2 stx 3 etx 4 eot 5 enq 6 ack 7 bel 8 bs 9 ht 10 nl 11 vt 12 np 13 cr 14 so 15 si 16 dle 17 dc1 18 dc2 19 dc3 20 dc4 21 nak 22 syn 23 etb 24 can 25 em 26 sub 27 esc 28 fs 29 gs 30 rs 31 us 32 sp 33 ! 34 " 35 # 36 $ 37 % 38 & 39 ' 40 ( 41 ) 42 * 43 + 44 , 45 - 46 . 47 / 48 0 49 1 50 2 51 3 52 4 53 5 54 6 55 7 56 8 57 9 58 : 59 ; 60 < 61 = 62 > 63 ? 64 @ 65 A 66 B 67 C 68 D 69 E 70 F 71 G 72 H 73 I 74 J 75 K 76 L 77 M 78 N 79 O 80 P 81 Q 82 R 83 S 84 T 85 U 86 V 87 W 88 X 89 Y 90 Z 91 [ 92 93 ] 94 ^ 95 _ 96 ` 97 a 98 b 99 c 100 d 101 e 102 f 103 g 104 h 105 i 106 j 107 k 108 l 109 m 110 n 111 o 112 p 113 q 114 r 115 s 116 t 117 u 118 v 119 w 120 x 121 y 122 z 123 { 124 | 125 } 126 ~ 127 del FILES
/usr/share/misc/ascii HISTORY
An ascii manual page appeared in Version 7 AT&T UNIX. BSD
June 5, 1993 BSD
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