AWK in CSH script problems Post: 302238791

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Top Forums Shell Programming and Scripting AWK in CSH script problems Post 302238791 by tpltp on Monday 22nd of September 2008 02:48:33 AM

09-22-2008

Registered User

AWK in CSH script problems

Hello Guys,

I was trying to obtain the information from the /etc/passwd file, here was my script:

Code:

38 echo -n "What's your login name? "
 39 set logname=$<
 40 echo "Your login name is $logname, your user's ID is `grep $logname /etc/passwd|awk -F: '{print $3}'`"
 41 echo " Your home dir is `grep $logname /etc/passwd |awk -F: '{print $6}'`"

But I can't get the right answer. The result is as follows:

Code:

echo -n What's your login name?
What's your login name? zhihua
set logname=zhihua
echo Your login name is zhihua, your user's ID is `grep zhihua /etc/passwd|awk -F: '{print }'`
grep zhihua /etc/passwd
awk -F: {print }
Your login name is zhihua, your user's ID is zhihua:x:1000:1000:Zhihua,,,:/home/zhihua:/bin/bash
echo  Your home dir is `grep zhihua /etc/passwd |awk -F: '{print }'`
grep zhihua /etc/passwd
awk -F: {print }
 Your home dir is zhihua:x:1000:1000:Zhihua,,,:/home/zhihua:/bin/bash

It seems that in the awk segment, the shell replaces inner awk's parameters $N with the shell script's variables.

How can i avoid this problem? Thanks in advance!!

tpltp

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LEARN ABOUT OPENSOLARIS

igawk

IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME

       igawk - gawk with include files

SYNOPSIS

       igawk [ all gawk options ] -f program-file [ -- ] file ...
       igawk [ all gawk options ] [ -- ] program-text file ...

DESCRIPTION

       Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1).

       AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like

	      @include getopt.awk

       in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path.

OPTIONS

       See gawk(1) for a full description of the AWK language and the options that gawk supports.

EXAMPLES

       cat << EOF > test.awk
       @include getopt.awk

       BEGIN {
	    while (getopt(ARGC, ARGV, "am:q") != -1)
		 ...
       }
       EOF

       igawk -f test.awk

SEE ALSO

       gawk(1)

       Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995.

AUTHOR

       Arnold Robbins (arnold@skeeve.com).

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +--------------------+-----------------+
       |  ATTRIBUTE TYPE    | ATTRIBUTE VALUE |
       +--------------------+-----------------+
       |Availability	    | SUNWgawk	      |
       +--------------------+-----------------+
       |Interface Stability | Volatile	      |
       +--------------------+-----------------+
NOTES

       Source for gawk is available on http://opensolaris.org.

Free Software Foundation					    Nov 3 1999								  IGAWK(1)