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02-02-2009
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fetching paragraphs with SED
hi,
i am a SED newbie and i need some help. i have a log file as shown below. and i want to search specific Error Code, and fetch the whole paragraph. [2009-02-01 15:42:51,630] ... [2009-02-01 16:52:51,683] ... ................. ....ErrCode... ................. [2009-02-01 17:49:33,686] ... [2009-02-01 17:59:00,000] ... [2009-02-01 18:52:50,000] ... ................. ....ErrCode... let's say, i want to search "ErrCode" and it will show me that. how can i do this with SED : [2009-02-02 16:52:51,683] ... ................. ....ErrCode... ................. [2009-02-01 18:52:50,000] ... ................. ....ErrCode... thanks.. |
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02-02-2009
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You'll need a beginning and ending paragraph search string.
This may be easier in awk, also.... But try: Code:
sed -n '/first_string/,/second_string/p' file_in |
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02-02-2009
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If your "paragraphs" are separated by blank lines:
Code:
sed -e '/./{H;$!d;}' -e 'x;/ErrCode/!d;'
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02-02-2009
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Input file looks like:
Code:
ant 1 bat 2 cat 3 dog 4 emu 5 fox 6 ant 7 bat 8 cat 9 dog 10 emu 11 fox 12 ant 13 bat 14 cat 15 dog 16 emu 17 fox 18 ant 19 bat 20 cat 21 dog 22 emu 23 fox 24 Code:
cat a |
awk '
/dog/{ print_ind = 1; }
{ if ( print_ind == 1 ){ print; }}
/fox/{ print_ind = 0; }'
Last edited by quirkasaurus; 02-02-2009 at 11:40 AM.. Reason: one too many print statements. |
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