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Top Forums Shell Programming and Scripting Issues in reading file using 'awk' Post 302781347 by Don Cragun on Saturday 16th of March 2013 08:50:09 AM
Old 03-16-2013
Quote:
Originally Posted by emily
Hi,
Thanks for the reply,
Yes, it is the actual name of the log that I posted at [1].
ummm, I guess it the the symbol for the starting of the next line. Cos the content was not enough to come on the single line.

Besides, using the command on the terminal give the proper 'jobNo' on the same qcd12_status.log file.

emily
I am guessing that we have a small language barrier in this discussion.

The output that you said you were getting when you run the command manually has a leading space that the awk script you showed us would not produce.
The output that you said you were getting when you run the command manually also contains text from the continuation line in your log file that your awk script does not handle.

When I run the awk script you provided with the input data you provided, the output produced is:
Code:
57,331,333,336,348,2-3,11,28,45,49,67-68,80,82,87,102-104,107-108,111-112,114,117-118,123-125,127-132,134,139,148-157,159-161,169-172,174,179-180\

not:
Code:
 57,331,333,336,348,2-3,11,28,45,49,67-68,80,82,87,102-104,107-108,111-112,114,117-118,123-125,127-132,134,139,148-157,159-161,169-172,174,179-180,182-185,200,202,204,208-210,219,226,236,238,245,251,253-257,262,265,271,280,288,308,330,353,355,375,377,381,385,387

But, we are using awk after the command that produced the input file is long gone. Since your script is running crab to produce the file being read by awk asynchronously in the background while awk is running in the foreground, there is a good chance that awk will hit end of file before crab writes anything into the file. If this happens, obviously jobNo will be set to an empty string.

If you get rid of the ampersand (&) at the end of the crab command line and if crab does not split long "List of jobs" lines with backslashes (\) and follow them with the continuation lines that you showed in your 1st message in this thread, everything should work as you expect it to work.
 

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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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