So what i am trying to do is write a script that takes in any number of scrambeled words and unscrambles them.
I have already addressed the issues of partial matches, exits silently if there are no matches, and finds words regardless of case that they were input. but while trying to get it so that letter counts matched, so a word with two 'ss' would not get results with anything more or less than two 'ss', but i ran into an issue where my loop is dropping my last egrep when i run my eval cmd...
I cant seem to figure out why the echo shows the right command but when it evaluates the command it loses the last part?
I also am working on the need for if a word is entered with nin alpha characters and to ignore it and out put a message, and error handling so that no bash errors are thrown.
My code with debugging run to show how its dropping the last command
Code:
1 #!/bin/bash
2 echo "This Script interprets each input entered and descrambles the letters to determine the words that match. :)"
3
4 #[[ -z "$1"]] && echo "You must input 1 or more scrambled words to be unscrambled." && exit 1
5
6 until [ -z "$1" ]; do #Continue to take in parameters until none left
7 word=$1
8 len=${#word}
9 cmd="egrep -i \"\<[$word]{$len}\>\" /usr/dict/words"
10
11
12
13 for x in $(seq 0 $((len-1))) ; do
14 while [ -n "$word" ]; do
15
16 ltr=${word:0:1}
17 nxt=${word//[^$ltr]/}
18 cnt=${#nxt}
19 re="$cmd"
20
21 if [ "${cnt}" -gt "1" ];
22 then cmd="$re |egrep -i \"((${ltr}.*){${cnt}})\"";
23 #cmd="$re |egrep -i \"((.*${ltr}){${cnt}})\""
24 else
25 cmd="$re|egrep -i \"(${ltr}.*)\"";
26 fi
27
28 #echo $cmd
29
30 word=${word//$ltr/}
31 len=${#word}
32 done #End of for loop
33 done #End of for loop
34
35 echo $cmd
36 eval "$cmd" #Evaluate Regular Expression
37 shift #Shift parameters by 1
38 done #End of Until loop
Ok, i fixed the last issue, i had eval evaluating the wrong string set. I still need some help with interpreting the non alpha's if someone can help.
This is a simple function that tests for non-alpha characters in a word. May not be the most efficient, but it does work.
Code:
# returns good (0) if the word contains only alpha chracters
function word_ok
{
case $1 in
*[^a-zA-Z]*) return 1;; # return bad if word contains any non-alpha
esac
return 0
}
# example usage:
if word_ok $1
then
echo "word is ok: $1"
else
echo "word is bad: $1"
fi
./eggs dda godgy dnoaym iaMmi enlesasm iplup
and output of:
This Script interprets each input entered and descrambles the letters to determine the words that match. :)
add
dad
doggy
dynamo
Monday
Miami
lameness
maleness
maneless
nameless
pupil
But if there was a word entered with non alpha then it should output a comment that the string saying that it is ignored like:
Ignoring "l34d" as it contains non-alpha characters.
In Bash shell - the ps -ef shows only the /bin/bash but the script name is not displayed ? Is there any way to get the script names for the process command ?
--- Post updated at 08:39 AM ---
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