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Full Discussion: Shell scripting task
Homework and Emergencies Homework & Coursework Questions Shell scripting task Post 302516922 by Strongid on Monday 25th of April 2011 01:54:59 PM
Old 04-25-2011
Shell scripting task

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1. The problem statement, all variables and given/known data:

Hi all,
I am new to shell scripting. And I have a task to do, I tried all possible ways to solve this, but didn't. Iwas wondering maybe someone could help me.

So I have a random file something like this

Andrew John Mike
Alfa Omega Beta

And I need to create scrip witch would filter any file like this:
- Find two most repeated symbols in file ( in this file I think it would be "a")
- Find most repeated line end in this file
- And symbol combination, witch is not in combination of symbols witch i entered
like this "joh"
And write all these to new file
I am really appreciate if someone would help me.
Thank You.


2. Relevant commands, code, scripts, algorithms:
awk, grep

3. The attempts at a solution (include all code and scripts):
I tried this:
Code:
#!/bin/bash
mas=( Andrew John Mike )
for i in ${#mas[@]}
do
  echo "Emelents count ${#mas[@]}"
  echo ${mas[0]}
done

Well i tried many diffrent ways, I don't know solution for first task, so I can't go any further, cause other tasks are familiar. I just can't go on. Help please .

4. Complete Name of School (University), City (State), Country, Name of Professor, and Course Number (Link to Course):
Kaunas College, Kaunas, Lithuania, first course, proffesor R.Kraunevičienė

Last edited by Scott; 04-25-2011 at 03:52 PM.. Reason: Added code tags
 

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SHTOOL-PATH.TMP(1)					      GNU Portable Shell Tool						SHTOOL-PATH.TMP(1)

NAME
shtool-path - GNU shtool command dealing with shell path variables SYNOPSIS
shtool path [-s|--suppress] [-r|--reverse] [-d|--dirname] [-b|--basename] [-m|--magic] [-p|--path path] str [str ...] DESCRIPTION
This command deals with shell $PATH variables. It can find a program through one or more filenames given by one or more str arguments. It prints the absolute filesystem path to the program displayed on "stdout" plus an exit code of 0 if it was really found. OPTIONS
The following command line options are available. -s, --suppress Supress output. Useful to only test whether a program exists with the help of the return code. -r, --reverse Transform a forward path to a subdirectory into a reverse path. -d, --dirname Output the directory name of str. -b, --basename Output the base name of str. -m, --magic Enable advanced magic search for ""perl"" and ""cpp"". -p, --path path Search in path. Default is to search in $PATH. EXAMPLE
# shell script awk=`shtool path -p "${PATH}:." gawk nawk awk` perl=`shtool path -m perl` cpp=`shtool path -m cpp` revpath=`shtool path -r path/to/subdir` HISTORY
The GNU shtool path command was originally written by Ralf S. Engelschall <rse@engelschall.com> in 1998 for Apache. It was later taken over into GNU shtool. SEE ALSO
shtool(1), which(1). 18-Jul-2008 shtool 2.0.8 SHTOOL-PATH.TMP(1)
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