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Re: bash sockets: printf \x0a does TCP fragmentation
From: |
dirk+bash |
Subject: |
Re: bash sockets: printf \x0a does TCP fragmentation |
Date: |
Tue, 25 Sep 2018 15:04:37 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.0 |
On 9/23/18 8:26 PM, Chet Ramey wrote:
> On 9/22/18 4:22 PM, Bob Proulx wrote:
>
>> Note that I *did* provide you with a way to do what you wanted to do. :-)
>>
>> It was also noted in another message that the external standalone
>> printf command line utility did buffer as you desired. That seems
>> another very good solution too. Simply use "command printf ..." to
>> force using the external version.
>
> This won't work the way you want. The `command' builtin only inhibits
> execution of shell functions. It still executes builtins. You want to
> either get the full pathname of a printf utility using `type -ap printf'
> and use that, or use the env or exec variants I recommended in my last
> message.
FYI: I ended up checking with type before whether an external printf
exists and set a variable for this and then just call this variable.
env or exec: never thought about it (thanks!) but as both are external
commands, that would mean upon every call one additional external program.
(yes, I know that there is such thing as a fs buffer). Subshells also costs
resources. As this is a core function I am happy for every homeopathic dose
of time I safe here :-)
Cheers, Dirk
- Re: bash sockets: printf \x0a does TCP fragmentation, (continued)
- Re: bash sockets: printf \x0a does TCP fragmentation, Bob Proulx, 2018/09/22
- Re: bash sockets: printf \x0a does TCP fragmentation, dirk+bash, 2018/09/22
- Re: bash sockets: printf \x0a does TCP fragmentation, Bob Proulx, 2018/09/22
- Re: bash sockets: printf \x0a does TCP fragmentation, Chet Ramey, 2018/09/23
- Re: bash sockets: printf \x0a does TCP fragmentation, Bob Proulx, 2018/09/23
- Re: bash sockets: printf \x0a does TCP fragmentation, Bob Proulx, 2018/09/23
- Re: bash sockets: printf \x0a does TCP fragmentation, Chet Ramey, 2018/09/23
- Re: bash sockets: printf \x0a does TCP fragmentation,
dirk+bash <=
- Re: bash sockets: printf \x0a does TCP fragmentation, Chet Ramey, 2018/09/25
- Re: bash sockets: printf \x0a does TCP fragmentation, Greg Wooledge, 2018/09/25
- Re: bash sockets: printf \x0a does TCP fragmentation, dirk+bash, 2018/09/25
- Re: bash sockets: printf \x0a does TCP fragmentation, Robert Elz, 2018/09/22
- Re: bash sockets: printf \x0a does TCP fragmentation, Bob Proulx, 2018/09/23
- Re: bash sockets: printf \x0a does TCP fragmentation, Robert Elz, 2018/09/23
- Re: bash sockets: printf \x0a does TCP fragmentation, Bob Proulx, 2018/09/23
- Re: bash sockets: printf \x0a does TCP fragmentation, Greg Wooledge, 2018/09/24
- Re: bash sockets: printf \x0a does TCP fragmentation, L A Walsh, 2018/09/25
- Re: bash sockets: printf \x0a does TCP fragmentation, Greg Wooledge, 2018/09/25