*/intmain(intargc,char** argv){charc;charcmdline[MAXLINE];intemit_prompt =1;/* emit prompt (default) *//* Redirect stderr to stdout (so that driver will get all output * on the pipe connected to stdout) */dup2(1,2);/* Parse the command line */while((c = getopt(argc, argv,...
stdout: $ command 2>&1 1>&1 2>stderr 1>stdout # redirect stderr and stdout to separate files and stdout to orig. stdout # AND stderr to orig. stderr: $ command 2>&2 1>&1 2>stderr 1>stdout # More fun with STDERR ;) $ ./my-script.sh 2> >(grep -v moron >error.log)...
#Redirect stderr to `/dev/null` in case unforseen errors produced by the #worker. For example: `fork failed: resource temporarily unavailable`. #Some older versions of zsh might also print malloc errors (know to happen #on at least zsh 5.0.2 and 5.0.8) likely due to kill signals. ...
curl cheat.sh/command will give a brief "cheat sheet" with common examples of how to use a shell command. Learn about redirection of output and input using > and < and pipes using |. Know > overwrites the output file and >> appends. Learn about stdout and stderr. Learn about file ...
Commands can be followed by one or more words which are the arguments to the command. How a shell tokenizes the input into words is complicated in the general case, but in the common case the arguments are whitespace delimited. simple command with redirect ...
tee /etc/init.d/mediamtx >/dev/null << EOF #!/bin/sh /etc/rc.common USE_PROCD=1 START=95 STOP=01 start_service() { procd_open_instance procd_set_param command /usr/bin/mediamtx procd_set_param stdout 1 procd_set_param stderr 1 procd_close_instance } EOF Enable and start the ...