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Split content based on keywords
Post 303032121 by Jairaj on Tuesday 12th of March 2019 03:38:55 AM
03-12-2019
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Hello everyone,
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Arun kumar something somehting Enterting in to the line
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.
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.
Some text text Finshing the sentence
Some other text
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Again something somehting Enterting in to the line
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Hello!
I'm trying to process a text file and am stuck at 2 extractions. Hoping someone can help me here:
1. Given a line in a text file and given a keyword, how can I extract the word preceeding the keyword using a shell command/script?
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I need to split the file contents with multiple rows based on patterns
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XYZ102U
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KMNValid
In this ABC , XYZ and KMN are patterns
Continue here./mod]
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LEARN ABOUT DEBIAN
gethead
gethead(1) General Commands Manual gethead(1) Name gethead - Print FITS or IRAF header keyword values Synopsis gethead [-hptv] [-d pathname] [-n num] <FITS or IRAF file> kw1 kw2 ... kwn Description Print values of the specified keywords from the given image header. By default they are all listed on one line, separated by spaces. The -v flag causes the keyword names and values to be printed, one keyword per line. To read keywords from a list of files, substitute @<list- file> for the file names on the command line. To read a lot of keywords, put them, one per line, in a file and substitute @<keylistfile> on the command line. If two @ commands are present, the program will figure out which contains file names and which contains keywords. Options -a List file name even if keywords are not found -d Root directory for input files (default is cwd) -e Output keyword=value's on one line per file -f Never print filenames (default is to print them if more than one) -g Output keyword=value's on one line per keyword -h flag causes the keyword names to be printed at top of columns. -n Number of decimal places in numeric output -o OR conditions instead of ANDing them -p Print full pathnames of files -t flag causes the output to be in tab-separated tables with keyword column headings. -u Always print ___ if keyword not found, event if only one keyword in search -v Print output as <keyword>=<value>, one per line Web Page http://tdc-www.harvard.edu/software/wcstools/gethead.html Author Doug Mink, SAO (dmink@cfa.harvard.edu) 6 July 2001 WCSTools gethead(1)