The first thing I notice is that you do "while [ $result ]", but haven't set $result anywhere - is this present in your environment?
Also, the body of the while[$result] doesn't modify $result, so it will loop forever if $result is true on entry.
Yeah, it's a complete mess, isn't it? The problem stems from the fact that I could do this in PhP, but it's a production server and they don't want PhP running on it, and so I have to do it in bash, and have never created arrays (which I think is what's required) in bash.
So here is what I hope is a tidier version - especially devoid of those ugly echo statements.
I think it starts to come unstuck at the first line which executes the first SQL query (the red line). If it comes back with 25 results, then what I want in the evaluation (the magenta line) is basically to say ..
if the first query returns anything other than zero lines, then do this. But I can't figure out which variable to use. ?#, ## and so on .. none works.
Last edited by Scrutinizer; 01-30-2013 at 11:59 AM..
Reason: ICODE to CODE tags
Hi ,
I am currently using the while loop in bash shell, as follows.
while read line
do
echo $line
done < file.txt
However, i want to use the while loop on file.txt, which will read the file with 4 lines of gap.
Ex- if file.txt is a file of 100 lines, then i want to use the loop such... (3 Replies)
I'm trying to understand if it's possible to create a set of variables that are numbered based on another variable (using eval) in a loop, and then call on it before the loop ends.
As an example I've written a script called question (The fist command is to show what is the contents of the... (2 Replies)
I'm trying to export a mysql query to a .csv file, right now I'm running a successful query like:
us_id=`mysql -u $USER_NAME --password=$PASSWORD -D "databasename" \
-e "SELECT * \
FROM databasename.table \
WHERE somefield >0 AND otherfield ='$ctry' \
ORDER BY... (1 Reply)
After doing a yum install mysql mysql-server on Fedora 14 I wasn't able to fully install the packages correctly. It installed MySQL 5.1. I was getting the following error when running the:
mysql
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)... (3 Replies)
Hi,
I have a loop running until a variable L that is read previously in the full script. I'd like to grep some information in an input file at a line that contains the value of the loop parameter $i.
I've tried to use grep, but the problem is nothing is written in the FILE files. It seems grep... (5 Replies)
Dear mentors, I just need little explanation regarding for loop to give input to awk script
for file in `ls *.txt |sort -t"_" -k2n,2`; do
awk script $file
done
which sorts file in order, and will input one after another file in order to awk script
suppose if I have to input 2 or... (4 Replies)
In the bash when the user inputs an id to search for the bash currently closes, and if a match is found outputs a new file (match.txt). Is it possible to have not close the bash but rather, on the screen "searching for match" and if a match is found "match found in line.." is displayed... (3 Replies)
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HI
I have a dsv file that looks like:
<<BOF>>
record_number|id_number|first name|last name|msisdn|network|points|card number|gender
312|9101011234011|Test Junior|Smith|071 123 4321|MTN|73|1241551413214444|M
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Cope sample1: test.sh
i=0
echo " Outside loop i = $i "
while
do
i=$(( $i + 1))
echo "Inside loop i = $i "
done
echo " Out of loop i is : $i "
When run output :
Outside loop i = 0
Inside loop i = 1
Inside loop i = 2
Inside loop i = 3
Inside loop i = 4
Inside loop i = 5
Inside... (8 Replies)