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Full Discussion: for loop using {1..$t}
Top Forums Shell Programming and Scripting for loop using {1..$t} Post 302715207 by Jotne on Sunday 14th of October 2012 04:53:14 AM
Old 10-14-2012
for loop using {1..$t}
I read here: Bash For Loop Examples
that I should not use seq, instead use {1..10}

I am not getting this to work

old code
Code:
#!/bin/bash
t=$(cat /var/bin/servers | wc -l)
for c in $(seq 1 $t)
        do
                SERVER[$c]=$(awk 'NR==C { print $2 }' C="$c" /var/bin/servers)
        done

new code not working
Code:
#!/bin/bash
t=$(cat /var/bin/servers | wc -l)
for c in {1..$t}
        do
                SERVER[$c]=$(awk 'NR==C { print $2 }' C="$c" /var/bin/servers)
        done

This give error like this error token is "{1..8}"
{1..8} seems to be the correct replacement for $t

also tested this for c in {1..${t}}, not working

This works fine for c in {1..8}, but I need the variable option.
 

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LEARN ABOUT SUNOS

getusershell

getusershell(3C)					   Standard C Library Functions 					  getusershell(3C)

NAME

       getusershell, setusershell, endusershell - get legal user shells

SYNOPSIS

       #include <unistd.h>

       char *getusershell(void);

       void setusershell(void);

       void endusershell(void);

DESCRIPTION

       The  getusershell()  function  returns  a  pointer  to  a  legal  user  shell  as defined by the system manager in the file /etc/shells. If
       /etc/shells does not exist, the following locations of the standard system shells are used in its place:

       /bin/bash		  /bin/csh
       /bin/jsh 		  /bin/ksh
       /bin/pfcsh		  /bin/pfksh
       /bin/pfsh		  /bin/sh
       /bin/tcsh		  /bin/zsh
       /sbin/jsh		  /sbin/pfsh
       /sbin/sh 		  /usr/bin/bash
       /usr/bin/csh		  /usr/bin/jsh
       /usr/bin/ksh		  /usr/bin/pfcsh
       /usr/bin/pfksh		  /usr/bin/pfsh
       /usr/bin/sh		  /usr/bin/tcsh
       /usr/bin/zsh		  /usr/xpg4/bin/sh

       The getusershell() function opens the file /etc/shells, if it exists, and returns the next entry in the list of shells.

       The setusershell() function rewinds the file or the list.

       The endusershell() function closes the file, frees any memory used by getusershell() and setusershell(), and rewinds the file /etc/shells.

RETURN VALUES

       The getusershell() function returns a null pointer on EOF.

BUGS

       All information is contained in memory that may be freed with a call to endusershell(), so it must be copied if it is to be saved.

SunOS 5.10							    30 Aug 2004 						  getusershell(3C)
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