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Homework and Emergencies Homework & Coursework Questions Need help how to search for shortest line from a file Post 302925696 by junior-helper on Tuesday 18th of November 2014 05:56:02 PM
Old 11-18-2014
As we are not allowed to provide full solutions in the homework sub-forum, I suggest following code (you can build upon):
Code:
linenumber=1

while read line; do
 echo "line length" "line number" "$line" # hint for line length: ${#parameter}
 # increment line number by one here, hint: $((expression))
done < inputfile > outputfile # everything you echoed above goes to the outputfile

1. Go through the inputfile line by line in a while loop
2. Print line length, line number and line
3. Afterwards you get the longest and shortest line by utilizing (hint: using pipes) following tools on the outputfile:
sort -n, head/tail -n1 and cut -d' ' -f2- (check out the man pages of the particular tools to learn the meaning of the options I mentioned for the particular tool)

Hope this helps.
 

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OGGCUT(1)							   User Manuals 							 OGGCUT(1)

NAME
oggCut - extracts parts of an ogg file (.ogv, .ogg and .oga) SYNOPSIS
oggCut [options] inputfile outputfile DESCRIPTION
oggCut creates a new ogg file named outputfile as a subpart of the original file named inputfile oggCut is able to cut video (theora) only files, audio (vorbis) only files or files with both video and audio streams. The start and end time for the cut area must be given in milliseconds with the options -s and -e. As a video stream consists of I-frames (which are full pictures) and P-frames (which are delta pictures to the leading I-frame) the oggCut algorithm searches for the first I-frame. If a video file would start with a p-frame, the player is not able to interpret this picture, as the leading I-frame (on where it is based) is not available. oggCut starts the I-frame search at the start time given by the -s option. So expect a shorter video time than the calculated seconds for the new file. oggCut does not do any reencoding, therefore the output quality is completely the same as from the input file. For those involved into the ogg container format: The file is cut on packet basis, not on page basis. There is another tool called oggCut out in the internet with a different synopis. This one has not been written by the author of this tool you are actually using. OPTIONS
-s Cut start position in ms. If the input file is a video file, the cut area starts with the next keyframe found. Default: 0 Example: -s 5000 -l Length of the cut area in ms. If -e is also given, the length is ignored. Example: -l 10000 -e Cut end position in ms. If -l is also used, the end position is prefered. If the end position is set to -1, the end of the stream is assumed. Default: -1 Example: -e 20000 EXAMPLE
oggCut -s 1000 -e 21000 myVideo.ogv myOutput.ogv Creates a new video called myOutput.ogv from the video myVideo.ogv starting after 1 second ending after 21 seconds AUTHOR
Joern Seger <yorn at gmx dot net> SEE ALSO
oggCat(1), oggJoin(1), oggSplit(1), oggTranscode(1), oggSlideshow(1), oggThumb(1), oggSilence(1) Linux JAN 2010 OGGCUT(1)
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