Debian 9 - missing files from /usr/bin like batch at

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Debian 9 - missing files from /usr/bin like batch at

Postby krelvinaz » 2017-09-03 07:55

So today I went to run a batch command and got this

-bash: batch: command not found

Weird.

Then I tried an at command and got the same.

-bash: at: command not found

Check on another server using Debian 7 and the two commands are located in /usr/bin

Code: Select all
-rwxr-xr-x 1 root root 152 Mar  4  2012 /usr/bin/batch
-rwsr-sr-x 1 daemon daemon 40832 Mar  4  2012 /usr/bin/at


and they are not there on the Debian 9 box. I don't have another Debian 9 loaded so I not quite sure how or what the issue but it looks like I am missing some files from /usr/bin

System is running fine, no errors etc... just noticed those files are missing.

Any ideas?
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Re: Debian 9 - missing files from /usr/bin like batch at

Postby GarryRicketson » 2017-09-03 10:49

There is no such command on Debian normally, "batch", that is a windows and
dos command.
Somebody could have made something up and named it "batch", and put it in
the /usr/bin dir , but it is not normal. What does the command do ?
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Re: Debian 9 - missing files from /usr/bin like batch at

Postby krelvinaz » 2017-09-03 10:58

Use it all the time on AiX, Solaris, Debian 7.

Man page from Debian 7

Code: Select all
AT(1)                                                                                                                      AT(1)

NAME
  at, batch, atq, atrm - queue, examine or delete jobs for later execution

SYNOPSIS
  at [-V] [-q queue] [-f file] [-mldv] timespec...
  at [-V] [-q queue] [-f file] [-mkdv] [-t time]
  at -c job [job...]
  atq [-V] [-q queue]
  atrm [-V] job [job...]
  batch
  at -b

DESCRIPTION
  at  and  batch  read  commands  from  standard  input or a specified file which are to be executed at a later time, using
  /bin/sh.

  at    executes commands at a specified time.

  atq   lists the user's pending jobs, unless the user is the superuser; in that case, everybody's jobs are listed.   The
         format of the output lines (one for each job) is: Job number, date, hour, queue, and username.

  atrm  deletes jobs, identified by their job number.

  batch executes  commands  when system load levels permit; in other words, when the load average drops below 1.5, or the
        value specified in the invocation of atd.


Using batch, when you type batch, followed by a command and ^D, the command will start immediately in background.

Use at, you can specify when you want the scrip to run such as
at now + 5min

Both are as if you put the command in a cron schedule and run as /bin/sh

A website with clear descriptions of them and how to use them fo Unix and Linux:
https://www.computerhope.com/unix/uat.htm
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Re: Debian 9 - missing files from /usr/bin like batch at

Postby krelvinaz » 2017-09-03 11:22

Apparntly it was removed but their is a package for it.

https://packages.debian.org/stable/at

Code: Select all
  > apt-get install at
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  The following NEW packages will be installed:
    at
  0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
  Need to get 47.5 kB of archives.
  After this operation, 148 kB of additional disk space will be used.
  Get:1 http://mirrors.linode.com/debian stretch/main amd64 at amd64 3.1.20-3 [47.5 kB]
  Fetched 47.5 kB in 0s (2,900 kB/s)
  Selecting previously unselected package at.
  (Reading database ... 46301 files and directories currently installed.)
  Preparing to unpack .../archives/at_3.1.20-3_amd64.deb ...
  Unpacking at (3.1.20-3) ...
  Setting up at (3.1.20-3) ...
  Created symlink /etc/systemd/system/multi-user.target.wants/atd.service  /lib/systemd/system/atd.service.
  Processing triggers for systemd (232-25+deb9u1) ...
  Processing triggers for man-db (2.7.6.1-2) ...


Now, they are there.

Code: Select all
-rwsr-sr-x 1 daemon daemon 51464 Dec  8  2016 /usr/bin/at
-rwxr-xr-x 1 root root 152 Dec  8  2016 /usr/bin/batch


I don't remember ever having to install them before but I really can't find any websites which talk about them not being there or being removed from default apps in Debian 9
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Re: Debian 9 - missing files from /usr/bin like batch at

Postby GarryRicketson » 2017-09-03 11:29

Ok, sorry , I was thinking "batch" like in .bat files, ... I don't have Debian 9 handy either, but I do see both commands exist on "OpenBsd" as well,
I see this was posted, just now while I am writing, and I was also searching,
it explains, and that was my thought, it is not included in Debian 9,..
Post by krelvinaz » 2017-09-03 05:22
Apparntly it was removed but their is a package for it.

https://packages.debian.org/stable/at
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Re: Debian 9 - missing files from /usr/bin like batch at

Postby Head_on_a_Stick » 2017-09-03 11:31

Code: Select all
root@Xanadu:~ # apt-file search /usr/bin/batch                                         
at: /usr/bin/batch
libvips-tools: /usr/bin/batch_crop
libvips-tools: /usr/bin/batch_image_convert
libvips-tools: /usr/bin/batch_rubber_sheet
root@Xanadu:~ #

https://wiki.debian.org/WhereIsIt#A.22I ... tall.3F.22

:wink:
"Only the mediocre are always at their best." — Jean Giraudoux
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Re: Debian 9 - missing files from /usr/bin like batch at

Postby GarryRicketson » 2017-09-03 11:46

Off Topic, but Good to see you H_O_A_S, and thanks.







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