All Questions
32 questions
0
votes
1
answer
45
views
cpulimit: detect failure / exit status in Linux
I'm using cpulimit in a Bash script to run a certain command (ffmpeg) with a limited CPU usage, but I want to know if the command fails. But when the command(ffmpeg) fails with any error, cpulimit ...
- 153
-2
votes
1
answer
78
views
CSV file with many columns, print each using loop [closed]
I have a CSV file saved on my desktop with many columns.
The CSV file has only one row but 195 columns and I have to print each column in Unix using loop command. The path of the file is /home/...
0
votes
1
answer
59
views
Find file in directories of PATH env which match partially
Idea is to match a filename in any of directories mentioned in PATH environment. Usually, we do this by running "which <executable_filename>".
This works fine, when the file your are ...
- 3
5
votes
2
answers
994
views
How to execute command after every failed command?
I am trying to log every time a command fails (by sending an HTTP request to my VPS) to see how many times I have messed up.
I've tried: some_command || curl <my-vps>. Is there a better way?
3
votes
0
answers
226
views
I want to hide the output when I type in the make command in the terminal
So I'm on Linux and I've been tinkering around with cs50. I've figured out a way to emulate the make command that is used in the course. When I type this make command, a line will print that I would ...
- 31
-1
votes
1
answer
1k
views
How can I delete a file with spaces and quotes in the name?
How do I delete a file named 1 '2 3' 4 5
in Linux? None of the methods I've used have worked.
- 15
0
votes
1
answer
1k
views
How to Rename middle part of multiple files [duplicate]
I have some numeric files like:
test01-aaa.txt
test02-bbb.txt
test03-ccc.txt
test04-ddd.txt
I need to remove aaa,bbb,ccc,ddd part from the name. what is the best way i can do?
I tried with 'rename' ...
- 101
0
votes
1
answer
410
views
EtherCAT not found after full installation
I have been trying for the past few days to get the EtherCAT working with LinuxCNC, but my lack of knowledge about the Linux environment does not allow me to even start the project. I have all the ...
1
vote
1
answer
373
views
Ensuring only 1 mandatory parameter is passed to script
I am writing a shell script and new to getopts for parameter parsing.
What I have are 1 optional and 2 mandatory parameters and what I want to do is ensure that only one mandatory parameter is passed. ...
- 13
1
vote
1
answer
1k
views
Wha't is the meaning of global option in dig command and how to use them?
dig mt-example.com
; <<>> DiG 9.4.1-P1 <<>> mt-example.com
;; global options: printcmd
I wonder what's the global options and what
printcmd
meaning, I searched in internet ...
- 121
2
votes
1
answer
4k
views
How to uncompress multiple Zlib Archives with one comand
I have >200 .zlib Archives and I want to uncompress them using one command in Linux console. I just cant get the command right. maybe somone can help me:
for z in *.zlib; do; zlib-flate -uncompress ...
- 21
1
vote
1
answer
210
views
Collect every n lines from a file
I have a huge log file, which needs to be streamed over HTTP. For performance reason, I want to capture/collect every n lines and send it over. So, basically, what I want is n lines buffered output ...
- 111
-1
votes
1
answer
805
views
How to get certain words in /proc/cpuinfo
I use a command like this:
test@localhost:~> cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 23
model : 1
model name : AMD Ryzen 5 1600 Six-...
- 101
0
votes
2
answers
135
views
Edit script to email output?
I'm basically trying to put two scripts I found online together. The first, in two parts, checks if a directory exists, if not creates it then goes on to take a picture through the webcam if an ...
- 1
0
votes
2
answers
3k
views
How can i store commands as a variables and execute them randomly in bash?
How can i store commands as a variables and execute them randomly in bash?
command1="
convert -size 2000x1000 xc:none -gravity center \
-stroke yellow -pointsize 50 -font Courier-BoldOblique -...
- 304