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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(5)							File Formats Manual							  ascii(5)

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