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Ubuntu 18.04, a number of lx containers running on it.
I am a complete noob in containers, just getting my toes wet.
I installed "tree" utility using apt on the host, thinking that it would be...

Thank you RudiC

I need help with understanding awk search feature.


Here I am trying to search by 4th field in this file:



$ cat xx
471013,A20,asd,100,FEATURE UNKNOWN
171014,A22,sdf,101,FEATURE WITH...

So, I added a "group id" to be included in the sort and solved it that way, and I don't pipe to sort individual arrays (which I suspect was a bug)
Just in case my code now looks like this:
...

I have three files as an input and I need to rearrange this input to match the rules by which the processing program consumes the data.


My files are:

/tmp$ cat F[123]
# file -1-...

It was Solaris 11 on Intel

Thank you! That is so interesting!



Just for a comparison I run that code where I pass a structure as 2nd parameter on Solaris 11, here is the output, which is quite different
params:
1)...

I am trying to illustrate the reverse order of parameters on the stack when passed to a function in C:



#include <stdio.h>

void p(int p1, int p2, double p3)
{
printf("params:\n"
...

I don't quite understand the question, the fopen() is not used here at all. If you meant fdopen(), then yes, in this code the call to fdopen uses fd variable, which is initialized by mkstemp

I have very little experience with gcc compilation under different environments, so please bear with me. I carried over 20 years old project into Ubuntu 18.04, it has old style K&R parameters, no ...

I liked the idea of using the seconds since epoch. This is old SCO system, its find does not have printf option. Found a gnutools with find that supports printf option and located all the files I...

There are some 25,000 files in 7,000 directories in my source library and I am trying to find oldest files. I am running this find:


find /usr/mysrc -name "*.[ch]" -type f -mtime +8000 -exec...

I put together a C function to add strings to a dynamic array of strings (mostly for educational purpose to explain pointers to my kid). It works, but sometimes one or two strings in the array...

Yes, the USB over Ethernet won't apply here because of the wiring difficulty.

There is no wiring in the room. When I said that networking can be done I thought that I would use...

8 meters of air, almost line of sight

Distance between the G5 box and the printer is around 8 meters on a straight line

I need to connect old PPC G5 running OSX 10.5.8 to Epson Stylus 1400 printer, wiring is very difficult, so I need to find out what are my wireless options. Printer has only USB input. The printing...

Thank you, I did not know about cron treating % as a special character

SCO OSR 507, user's shell is old Bourne sh
The same command is OK when run using now, but fails when run in cron, see below:

1) using now, see how it worked and I see resulting DT=2018 in the...

you could add
cd $i
before issuing zip command, and then
cd ..
right after

So your loop would look like follows

do
cd $I
your zip here, just adjust it accordingly
cd...

Great, works exactly as expected.

I am parsing a log with this format:

06:36:12.230 [TASK1] details here
06:36:12.250 [TASK1] details here
06:36:12.260 [TASK1] details here
continuation here
06:36:12.360 [TASK1] details here
...

I see that you use wget, so consider --spider option.

you can say

wget -q --spider your-url-to-check-here
echo $?
0 means file exists, 1 means file does not exist

older grep don't have -o option, in that case following your example just say
tr ' ' '\n' < list_of | grep -E '\.exe|\.bin'

Thank you, worked.