the printf command


 
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# 1  
Old 09-30-2006
the printf command

hello, Im at another part of the program i am writing. Where i think i'm going to need to use the printf command.

If anyone can help me figure out the printf layout i would greatly appreicate it.

thanks

Last edited by bebop1111116; 10-01-2006 at 10:49 PM..
# 2  
Old 09-30-2006
Code:
printf "%-10s%5s%-25s%-s" $str1 $str2 $str3 $str4

# 3  
Old 09-30-2006
just wanted to clarify, what do the $str1 $str2 ... represent?
# 4  
Old 09-30-2006
its the string which you want to print
# 5  
Old 10-01-2006
just a clarification

Quote:
/etc/passwd is the command interpreter which is
supposed to be run when a user logs in. and i believe that if a wrong password is entered then it is supposed to have /bin/false in the last field.
This isn't quite how it works. The /etc/passwd file isn't a command interpreter, it's just a plain text file in UNIX, although a very important one. The login command checks the file (and possibly /etc/shadow, or /etc/security/passwd) to verify that the username and password entered are correct. It also looks at the home directory and the shell. If you enter the correct userid & password, it will drop you into your home directory and execute the shell listed in the passwd file. If you enter an incorrect password, /bin/false is not executed, but the program "login" will itself deny access to the system.
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