Sponsored Content
Top Forums UNIX for Dummies Questions & Answers Differences in BASH and ASH shells regarding if command? Post 302452162 by Bashingaway on Thursday 9th of September 2010 12:20:19 PM
Old 09-09-2010
Differences in BASH and ASH shells regarding if command?

Guys

I now have a script that's working in a BASH environment, however one line doesn't appear to be working on an embedded device that has a busybox therefore ASH shell. I've googled but there's very little I can find regarding the ASH shell.

In BASH the following line works...

Code:
if [[ "$TARGETLIST" == *$QUERYVALUE* ]] ; then 
do blah blah blah
fi

The line is looking for the $QUERYVALUE to appear anywhere in the list of entries in $TARGETLIST and if it does it executes blah blah blah.

However in busybox the command just doesn't work (i.e. it doesn't detect if the $QUERYVALUE is in the $TARGETLIST) and doesn't throw an error.

Any ideas?
 

10 More Discussions You Might Find Interesting

1. BSD

BSD, Bash and Shells?

When I use Mac OS X's Terminal the UI is some what easier than that of Linux... I this just a shell or something because using Bash is a pain in RH's Linux 9. It's so sensitive about case etc. ??? In that way what is the shell that OS X uses as it's default Bash is on OS X (OK Duh) and... (3 Replies)
Discussion started by: RedVenim
3 Replies

2. Shell Programming and Scripting

Why generate "ash and bash" different output for same bash script?

Hi, For my bash script, terminal with bash is generate an OK output and program works right. already, terminal with ash have "line 48: syntax error: Bad substitution" output and program don't work. :confused: (0 Replies)
Discussion started by: s. murat
0 Replies

3. Shell Programming and Scripting

Interacting with two BASH shells

Hi. I'm working with two BASH shells in order to perform two tasks. For simplicity, suppose that at Shell #1 I'm executing this program: sleep 100 whose PID is 263. Meanwhile Shell #2 is waiting for its termination to follow with a second one. I tried with: wait 263 # Script for second... (4 Replies)
Discussion started by: hresquivelo
4 Replies

4. Shell Programming and Scripting

Bash shells communication

Hello all, I have the following problem. In a Bash shell I run a program (I don't have the source code) which will execute some steps. At every step the program will wait for a user input. So I would like that another script which is running on a different shell will send these input togheter with... (4 Replies)
Discussion started by: alohisius
4 Replies

5. Shell Programming and Scripting

Differences between shells

What is the practical difference among the different shell like csh , ksh , bash etc.:confused::confused: Please use descriptive subjects instead of single words (2 Replies)
Discussion started by: hiten.r.chauhan
2 Replies

6. Shell Programming and Scripting

ash busybox read command not working inside function....

I have a script that has to execute a read command in a function, this is in an ash busybox. The code is... trapcatch () { echo "Ctl-c Detected, what do you want to do?" echo "Please choose the number of one of the following options" echo "1. Jump past this Set" echo "2. Exit... (8 Replies)
Discussion started by: tesser
8 Replies

7. Shell Programming and Scripting

Bash Script to Ash (busybox) - Beginner

Hi All, I have a script that I wrote on a bash shell, I use it to sort files from a directory into various other directories. I have an variable set, which is an array of strings, I then check each file against the array and if it is in there the script sorts it into the correct folder. But... (5 Replies)
Discussion started by: sgtbobie
5 Replies

8. Ubuntu

Bash to Ash, errors and adjustments

I wrote Bash script and now I want to convert it to Ash. One headache is this function: do_adduser() { setaddprompt _arr_add=("Add manually" "Add via TXT" "return to main menu" "exit program") select add_action in "${_arr_add}" do case "$REPLY" in 1)... (7 Replies)
Discussion started by: fzivkovi
7 Replies

9. Ubuntu

Bash to ash port, character-matching problem

I'm trying to convert this working bash script into an Ash script, read -p "Username:" _username if ! ]]; then echo "Valid" else echo "INVALID" fi However, Ash does not recognize the "=~" character. How can I do this? Also, is there a good reference guide, so I... (5 Replies)
Discussion started by: fzivkovi
5 Replies

10. Ubuntu

Convert a bash to ash

hello everybody, i'm a beginner in ash and i want to convert this bash script to ash. this script send a xml file to a nagios server : #!/bin/bash PROGNAME=$(basename $0) RELEASE="Revision 0.3" print_release() { echo "$RELEASE" } print_usage() { echo "" echo "$PROGNAME... (6 Replies)
Discussion started by: mdijoux25
6 Replies
rbacdbchk(1M)															     rbacdbchk(1M)

NAME
rbacdbchk - Verifies the syntax of the Role-Based Access Control (RBAC) database files SYNOPSIS
DESCRIPTION
verifies that there are no conflicting or inconsistent entries in and amongst the RBAC database files. also checks the syntax of the data- base files and prints messages indicating which lines contain errors. returns zero output if no errors are present in the database files. All the RBAC database files and are verified. See rbac(5) for more information on these RBAC database files. Options supports the following options: Checks the database. Checks the database. Checks the database. Checks the database. Checks the database. Cross reference checks all databases. EXTERNAL INFLUENCES
Environment Variables determines the language in which messages are displayed. International Code Set Support Single-byte character code set is supported. RETURN VALUE
0. Success 1. Incorrect syntax EXAMPLES
The following example finds an error that user is an invalid user # rbacdbchk [/etc/rbac/user_role] John: Administrator invalid user The value 'John' for the Username field is bad. The following example finds a syntax error, an extra colon at the end of a line: # rbacdbchk [/etc/rbac/user_role] root: Administrator: invalid name: Not alphanumeric The value 'Administrator:' for the Rolename field is bad. [Role in role_auth DB with no assigned user in user_role DB] Administrator:(hpux.*, *) The following example finds a field missing: # rbacdbchk [/etc/rbac/roles] : my comment invalid name: <empty> The value '' for the Rolename field is bad. The following example finds a bad role: # rbacdbchk [Role in role_auth DB with no assigned user in user_role DB] blah:(hpux.*, *) [Invalid Role in role_auth DB. Role 'blah' does not exist in the roles DB] blah:(hpux.*, *) The following example finds a bad group name: # rbacdbchk [/etc/rbac/user_role] &blah: Administrator invalid group The value 'blah' for the Group name field is bad. FILES
Database containing valid definitions of all roles. Database containing definitions of all valid authorizations. Database specifying the roles for each specified user. Database that defines the authorizations for each role. Database containing the authorization to execute specified commands, and the privileges to alter uid and gid for command execution. Database that defines the role-to-authorization to audit SEE ALSO
authadm(1M), cmdprivadm(1M), privrun(1M), rbac(5). rbacdbchk(1M)
All times are GMT -4. The time now is 04:34 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy