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* Internet Search Results    *** Search Filter: "NC"    bash - Issue with netcat timeout - Stack Overflow Jun 13, 2014 at 5:53. 3. nc dumps out the verbose output to stderr, so if you just want to see the "Online" and "Offline", you need to use &> to tell bash to redirect both stdout and stderr to /dev/null. If you get rid of the -v, you can just say nc -z -w 3 localhost 5050 && echo "Online" || echo "Offline". – CDahn. Windows 7 netcat error: 'nc' is not recognized as an internal or ... Execute nc.exe -l -p 9999 in one cmd window and nc.exe localhost 9999 in another. Note that I'm on a 32b windows7, for 64bit use nc64.exe. Test by typing Hello in one command window and check if it is displayed in the other. bash - Minimal web server using netcat - Stack Overflow My little netcat web server needs to be a while true loop in bash, possibly as simple as this: while true ; do echo -e "HTTP/1.1 200 OK\n\n $ (date)" | nc -l -p 1500 ; done. When I try this the browser shows the currently available data during the moment when nc starts. I want the browser displays the data during the moment the browser requests ... Broadcasting a message using nc (netcat) - Stack Overflow The -u is not needed as it is telling netcat to listen on a unix domain socket, google IPC :) (this is the biggest reason that your scenario is not working.) The below should work to get a broadcast forwarded to another network via netcat: server: nc -l 0.0.0.0 12101. host: echo "hello" | nc 192.168.1.255 12101. How to listen for multiple tcp connection using nc ncat can do it, but the correct command with ncat is: ncat --keep-open --listen -p 12345. This will accept multiple connections at the same time. You can then send the data with multiple clients. e.g. open in two or more terminals, and try typing there: nc localhost 12345. answered Jul 8, 2021 at 11:57. Alex Bozhenko. Read .nc (netcdf) files using python - Stack Overflow import netCDF4 file2read = netCDF4.Dataset(cwd+'\filename.nc','r') var1 = file2read.variables['var1'] # access a variable in the file where cwd is my current working directory for getting the file path for the .nc file in order to read it: import os cwd = os.getcwd() I am using Windows, so file directory will be different than for Mac or Linux. How to send only one UDP packet with netcat? - Stack Overflow To find out which nc you have, look at the first line of output from nc -h. To send a single UDP packet and exit immediately, use the appropriate arguments for your specific nc. GNU nc -uc localhost 8000 << What is the difference between ssh proxycommand -W, nc, exec nc ProxyCommand ssh proxyserver exec nc -q0 %h %p 2> /dev/null. This is very much the same as the second variation, except you're calling the shell's built-in function exec. I'm not sure, but I believe there is no difference between including or excluding exec from the ProxyCommand; this variation should function everywhere the variation above ... Connect with SSH through a proxy - Stack Overflow So, I know the nc has different versions like openbsd-netcat and GNU-netcat, you can change the nc in debian to the openbsd version, but I choose to change the software like corkscrew, because the names of the two versions of nc in system are same, and many people don’t understand it well. My approach is as follows. Using BusyBox version of netcat for listening tcp port Here's the manual page for busybox's nc implementation. The correct syntax is. nc -l -p . The issue is, I think, that your version of busybox is compiled without nc listening capabilities. Indeed there's a config option at build time, NC_SERVER, that needs to be enabled to turn that feature on.     * Live EBAY Auctions   FIRE101 Jobs:    FIREMEN, EMS, Emergency, Rescue   POLICE101 Jobs:    Cops,Officers,Security   Mainframe IT Jobs:    z/OS, z/VM, DB2, COBOL,QA,INTERNs   Software Jobs:    Web, Linux, C++, Java, INTERNs   Finance Jobs:    Accounting, INTERNS, Brokers, Invest   Legal, Lawyer Jobs:    Paralegals, INTERNs,Law Firms   Medical, Nurse Jobs:    Doctors, INTERNs, Nurses, ER   Genetic, Science Jobs    Genetics, Research, INTERNs, Labwork   * Latest TaeKwonDo 101 News        *** News Filter: "NC"     Efforts to get Olympic athletes in N.C. for training  Spectrum News Durham mom endured tragedy time and again. 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