You really need to bookmark this........ http://tldp.org/LDP/abs/html/
That will give you everything you will probably ever need in bash :-)
--Cheers,
Matthew Rogers
Michael Fisher wrote:
> I am learning to do some bash programming on my new EmperorLinux
> lenovo T61 (prideful plug) and am having a problem in attempting to
> determine if an argument was included when the bash file was started.
> I can perform a printf statement and it prints whatever I add as an
> argument but I am attempting to do an 'if/then' statement.
>
> desnotes@tardis:~# ./read_history.sh 15 #15 added as argument
> desnotes@tardis:~# ./read_history.sh #no argument
>
>
> Snippet:
> .
> .
> .
> printf "argument= %s\n" "$1" #works correctly
>
> if [$1 -eq ""]; then
> cnt=10
> printf "$1 is blank\n" "$cnt"
> else
> printf "$1 is not blank\n" "$cnt"
> cnt=$1
> fi
>
> printf "cnt=%s\n" $cnt
>
> Error:
> If there is no argument I get this message: line 9: -eq: command not found
> If there is an argument of 15: line 9: 15: command not found
>
> Anyone have any idea what I am doing wrong? line 9 is the 'if' statement
>
> Thanks,
>
> Mike Fisher
>
>
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