Re: running arecord via ssh

2018-05-16 Thread David Margerison
On 17 May 2018 at 03:10, Pierre Frenkiel wrote: > hi, > I try to record some old vinyls with arecord, the output being > sent to my desktop via a radio transmitter/receiver couple. > > On the desktop xterm window, its works perfectly, but if I run arecord via > a ssh connection: > > 1/ from an oth

Re: List words separated by comma and without duplicates

2018-04-29 Thread David Margerison
On 30 April 2018 at 04:12, Antonio A. Rendina wrote: > > If you want to improve your bash skills you can read: > http://www.tldp.org/LDP/Bash-Beginners-Guide/html/ I suggest that to avoid poor and ancient, it would be better to read current documents written by active experts. http://mywiki.wool

Re: preferences > openbox configuration manager no start

2018-02-10 Thread David Margerison
On 28 January 2018 at 06:52, Harry Putnam wrote: > > What I'm seeing is at the lxde main menu > preferences > > openbox configuration manager > > When clicked nothing happens I just see the mouse cursor show the > `busy' icon. Nothing ever starts > > After doing a few dpkg -L pkgname looking for

Re: unison compatibility in stretch

2017-12-12 Thread David Margerison
On 12 December 2017 at 21:16, Tony van der Hoff wrote: > On 12/12/17 08:50, Curt wrote: >> >> * workaroundable via symlink version number truncation bug >> > Thanks for your reply, Curt, but we appear to speak different languages ;) > > WVSVNTB? The mysterious "WVSVNTB" might be a reference to th

Re: bash usage.

2017-11-05 Thread David Margerison
On 5 November 2017 at 19:17, wrote: > > Note that the mount(8) man page recommends findmnt(8) for script > usage. Findmnt is util-linux, so whether you want to use it or > not will depend a bit on your portability needs. > > Parsing mount output robustly is, of course, always a good exercise. Ah

Re: bash usage.

2017-11-04 Thread David Margerison
On 5 November 2017 at 08:31, David Margerison wrote: > > Demo example from an interactive bash command line on this PC: > > $ devname=/dev/sda6 ; dirname=/mnt/p/A ; if mount | grep -q -- > "$devname on $dirname" ; then echo "$devname is mounted on $dirname" ;

Re: bash usage.

2017-11-04 Thread David Margerison
On 5 November 2017 at 04:55, wrote: > What about checking whether the > filesystem of a specific device is mounted at that directory? Can > that be checked easily? It can be done by inspecting the output of the 'mount' command. But keep in mind that the detail of this output may not be stable

Re: bash usage.

2017-10-26 Thread David Margerison
On 26 October 2017 at 21:59, Roberto C. Sánchez wrote: > On Thu, Oct 26, 2017 at 04:19:42PM +1100, David Margerison wrote: >> On 26 October 2017 at 12:23, Roberto C. Sánchez wrote: >> > >> > mountpoint -q $WorkingDirectory >> > if [[ $? = 0 ]] >> >&g

Re: bash usage.

2017-10-25 Thread David Margerison
On 26 October 2017 at 11:39, wrote: > > According to 'man mountpoint', it returns 0 if something is mounted. > So why the complaint from > if [ mountpoint $WorkingDirectory ] ? Answered here: http://mywiki.wooledge.org/BashPitfalls#if_.5Bgrep_foo_myfile.5D http://mywiki.wooledge.org/BashGuid

Re: Editing /etc/apt/sources.list breaks update

2017-09-19 Thread David Margerison
On 16 September 2017 at 23:25, Erik Christiansen wrote: > On 16.09.17 15:44, Juha Manninen wrote: >> BTW, the reply address of this mailing list is set wrong. In some >> other lists I can click Reply and it goes to the list. Here it would >> go to the person who sent the last message. I have to e

Re: Weird shell script behavior in a cron job

2017-09-01 Thread David Margerison
On 31 August 2017 at 04:32, James H. H. Lampert wrote: > > I added a line to echo $SHELL to my debugging log file, and > that was it: if I ran it from cron, $SHELL was /bin/sh; if I ran it from a > command line, $SHELL was /bin/bash. Be careful to correctly understand the purpose of the SHELL env