deleting files on shell

[hhh]

How can i delete the following three files “abc1.dat”, “abc2.txt”, and “abc3.bat”
but not “abc4.tex” (Note: use only one shell command)

[radoulov]

Homework?

rm abc[1-3].[bdt][ax]t

Or better (assuming bash):

shopt -s extglob
rm abc[1-3].@([bd]at|txt)

The first example will remove abc.bxt, abc.dxt and abc.tat also

[Cabhan]

This sounds a bit like a homework question, which we're not allowed to answer.

I will say, however, that most commands take in a list of arguments, rather than just a single one. This is often indicated in a man page by "...". For instance, if we run "man rm", we see this at the top:

SYNOPSIS
       rm [OPTION]... FILE...

This means that rm takes in any number of (optional) options, followed by any number of files.

I suggest you consider how to use this.

[hhh]

my command is
rm -ri abc*

but i this command is not true because i must do it in one command this is my problem

***
shopt -s extglob
rm abc[1-3].@([bd]at|txt)

****
rm abc[1-3].[bdt][ax]t

couldn't run these with ssh

[bigtomrodney]

shopt -s extglob
rm abc[1-3].@([bd]at|txt)

****
rm abc[1-3].[bdt][ax]t

couldn't run these with ssh

Do you mean secure shell, or sh? Ssh is for remoting another machine. Sh is to call a script. If you are putting these in a script you must format the script properly by using a shabang #!/bin/bash at the start.

[hhh]

i acces our teachers machine via ssh, i solve my problem rm abc[1-3]* command,
i tried o say, i must use and run simply bash command because i am really new linux user and programmer

[bigtomrodney]

Are you using the BASH shell when you login via ssh? I don't really understand you. Is this now working?

[hhh]

yes, bash shell

(i said again i am extremelly new about linux)

[bigtomrodney]

If these commands are not working, can you post back the errors you are getting?

[hhh]

sorry i have tried again and i see both of the commands run succesfully!