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Full Discussion: Condition in bash script
Top Forums UNIX for Beginners Questions & Answers Condition in bash script Post 303038795 by eckertd on Friday 13th of September 2019 10:29:28 AM
Old 09-13-2019
This may help you figure out your logic:

In your 'for' loop:

"var" is going to start with arg1 and get reassigned to the next in the list each iteration until argn
"T1" is always going to be arg1
"T2" is always going to be arg2

Example:

Code:
$ cat /tmp/tryit
#!/usr/bin/bash

for a in "$@"; do
  echo $a $1 $2
done
$
$
$ /tmp/tryit a b c d e f
a a b
b a b
c a b
d a b
e a b
f a b

This User Gave Thanks to eckertd For This Post:
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LEARN ABOUT OPENSOLARIS

shells

shells(4)							   File Formats 							 shells(4)

NAME

       shells - shell database

SYNOPSIS

       /etc/shells

DESCRIPTION

       The shells file contains a list of the shells on the system. Applications use this file to determine whether a shell is valid. See getuser-
       shell(3C). For each shell a single line should be present, consisting of the shell's path, relative to root.

       A hash mark (#) indicates the beginning of a comment; subsequent characters up to the end of the line are not interpreted by  the  routines
       which search the file. Blank lines are also ignored.

       The following default shells are used by utilities: /bin/bash, /bin/csh, /bin/jsh, /bin/ksh, /bin/ksh93, /bin/pfcsh, /bin/pfksh, /bin/pfsh,
       /bin/sh, /bin/tcsh, /bin/zsh, /sbin/jsh, /sbin/sh, /usr/bin/bash, /usr/bin/csh, /usr/bin/jsh, /usr/bin/ksh, /usr/bin/ksh93, /usr/bin/pfcsh,
       /usr/bin/pfksh, /usr/bin/pfsh, and /usr/bin/sh, /usr/bin/tcsh, /usr/bin/zsh, and /usr/sfw/bin/zsh. /etc/shells overrides the default list.

       Invalid shells in /etc/shells could cause unexpected behavior, such as being unable to log in by way of ftp(1).

FILES

       /etc/shells    list of shells on system

SEE ALSO

       vipw(1B), ftpd(1M), sendmail(1M), getusershell(3C), aliases(4)

SunOS 5.11							    20 Nov 2007 							 shells(4)
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