hey guys
I would really appreciate some help, i need to do a project for a job that requires minimal UNIX scripting and im REALLY stuck
basically Im stuck at what i believe is something really simple but i just dont have a clue how to do it efficiently and properly and i REALLY appreciate some help
Basically i have a loop at which someone has to enter a string of 3 numbers.
-I want the code to check that the string is numbers only
-check that the numbers have not been already signed to someone else in the users.db file
-restrict the number of numbers to only 3.
- each time the user inputs the number wrong i want it to be allowed to correct and tell why he has to re enter it.
This is the best i could came up with but IM REALLY suck and im at a short UNIX course (1 week) for a job....
Can anyone please tell how do i make the loop properly??
this is the best i could came up with... and i KNOW is crap... but i just dont know best........ I would really appreciate some guidance plz
Check that the length is three. [ "${#STR}" -eq 3 ]
Check that it's all digits. [ -z "${STR/[0-9]*/}" ]
Check that it's not in the file. ! grep $ID user.db #??? not perfect but best I can do without knowing what user.db looks like
So
Thank you!!
I really appreciate that you took the time to help me out
However, how do I tell the user then why they are re inserting the information then?
specially if the entry is already in the user.db
coz that code will do it over and over again until is right but the person will not know why they have to re enter the info
I asked what the users.db looked like too, and noted that my grep solution probably doesn't do what you want because I don't know what users.db looks like...
I asked what the users.db looked like too, and noted that my grep solution probably doesn't do what you want because I don't know what users.db looks like...
Oracle Linux : 6.4/bash shell
In the below I want to break out of the loop when it enters the 5th iteration.
#!/bin/bash
for i in 1 2 3 4 5 6
do
echo "$i"
if
echo "Oh Nooo... i = $i. I need to stop the iteration and jump out of the loop"
then break
fi
done
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Hi,
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Display an initial prompt of the form:
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This is quite simply what I'm trying to make:
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need some help badly.
if i had a file with content of few lines like the followings.
1183724770.651 0.049 137.157.56.169 200 415 GET http://venus/client/clients.xml "text/xml"
1183724770.651 0.049 141.183.101.250 200 415 GET http://venus/client/clients.xml "text/xml"
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Hi,
have a basic query.
Please see the below code:
list="one two three"
for var in $list ; do
echo $var
list="nolist"
Done
Wht if I want to print only first/ last line in the list
Eg one & three
Regards
er_ashu (3 Replies)
Hi All,
I have absolutely no experince with either one, and would LOVE to start from somewhere! So please guide me to some web sites (beside these great forums of course!) that I can obtain n00b information. (Books, links, resources, etc.)
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