Unexpected "(" (expecting "}") Post: 303030754

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Top Forums Shell Programming and Scripting Unexpected "(" (expecting "}") Post 303030754 by Don Cragun on Friday 15th of February 2019 04:37:30 AM

02-15-2019

Registered User

Quote:

Originally Posted by ACorner

I fully understand why busybox is used on systems like JustEnoughOSes, after all that's the reason why I use LibreElec.
But it would be very helpfull if at least error messages would give a tiny hint that it's busybox that produces that error and not bash. It's not obvious that if you type an explicit command like /bin/bash that you end up in a "fake" version.
But that' another story.

I fully agree with you there. Note that if you were using a real bash, any diagnostic messages that it produces would include "bash:" at the start of the message. For example if I issue the command:

Code:

bash -c 'for i in *;do { cat "$i'

on macOS, I get two diagnostics:

Code:

bash: -c: line 0: unexpected EOF while looking for matching `"'
bash: -c: line 1: syntax error: unexpected end of file

each of which clearly indicates that the diagnostic came from bash (the first indicating that it is looking for a missing <double-quote> character and the second indicating that it is looking for a missing } and/or a missing done). This is why we asked you to be sure that you were showing us the exact, complete diagnostic messages you were getting when you reported the problem.

If the tools provided by busybox don't do that for you, you'll have a hard time trying to guess if the diagnostics you're seeing are coming from the shell or from one of the utilities invoked by the shell. This makes diagnosing problems in an environment like that much more difficult for you. I wish you luck.

Don Cragun

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LEARN ABOUT SUNOS

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/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/pfcsh,  /usr/bin/pfksh,
       /usr/bin/pfsh, and /usr/bin/sh, /usr/bin/tcsh, /usr/bin/zsh. Note that /etc/shells overrides the default list.

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

FILES

       /etc/shells	       lists shells on system

SEE ALSO

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

SunOS 5.10							    4 Jun 2001								 shells(4)