Error Setting Terminal Flags

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Returns SEARCH Knowledgebase: PayClock Version 5 Selecting The Available COM Port In PayClock Software PayClock software has the ability to communicate with badge terminals over a serial or COM port connection. In order to do so, the available COM port must be chosen. This is can be done through a Trial & Error process in the software.If running PayClock EZ or PayClock Pro with Terminal flag provided but not defined golang Manager disabled: Click System on the Ribbon Bar. Click the Terminal Tab. Select COM 1. Click Save. Click Test Clock. If Error Opening Port is displayed, choose another COM port. Do this repeatedly until the Terminal Test OK is shown. When the message received is Terminal Test OK, click Send Clock Time/Date. Clicking Send Clock Time/Date verifies if PayClock is communicating with the PayClock terminal or with another device on the computer, such as an internal modem. If the software is communicating with another device, Error Setting Terminal Time; Error Setting Terminal Flags will display.If Terminal Manager is enabled: Open PayClock. Maximize Terminal Manager from the task bar. Left click the terminal under All Terminals once. Right click the terminal and select Properties. Click the Connection Tab. Select COM 1. Click the General Tab. Click Test Connection. If Error Opening Port is displayed, select the next COM port on the Connection tab. Afterward, click the General tab and Test Connection. Do this repeatedly until the message received is Terminal Test OK. When Terminal Test OK displays, click the Time/Date tab. Click Sync Terminal To Server. Click Set. If the software shows A

modify only those modes that you are really interested in, and store the result command line flags with tcsetattr. It’s a bad idea to simply initialize golang flag positional arguments a struct termios structure to a chosen set of attributes and pass it directly to golang flag subcommand tcsetattr. Your program may be run years from now, on systems that support members not documented in this manual. The way to avoid setting https://kb.lathem.com/index.php?/Knowledgebase/Article/View/438/1/selecting-the-available-com-port-in-payclock-software these members to unreasonable values is to avoid changing them. What’s more, different terminal devices may require different mode settings in order to function properly. So you should avoid blindly copying attributes from one terminal device to another. When a member contains a collection of independent flags, as the http://www.gnu.org/s/libc/manual/html_node/Setting-Modes.html c_iflag, c_oflag and c_cflag members do, even setting the entire member is a bad idea, because particular operating systems have their own flags. Instead, you should start with the current value of the member and alter only the flags whose values matter in your program, leaving any other flags unchanged. Here is an example of how to set one flag (ISTRIP) in the struct termios structure while properly preserving all the other data in the structure: int set_istrip (int desc, int value) { struct termios settings; int result; result = tcgetattr (desc, &settings); if (result < 0) { perror ("error in tcgetattr"); return 0; } settings.c_iflag &= ~ISTRIP; if (value) settings.c_iflag |= ISTRIP; result = tcsetattr (desc, TCSANOW, &settings); if (result < 0) { perror ("error in tcsetattr"); return 0; } return 1; } Next: Input Modes, Previous: Mode Functions, Up: Terminal Modes [Contents][Index]

here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers http://stackoverflow.com/questions/2870992/automatic-exit-from-bash-shell-script-on-error or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Automatic exit from bash shell script on error up vote 282 down vote favorite 49 I've been writing some shell script and I would find it useful if there was the ability to halt golang flag the execution of said shell script if any of the commands failed. See below for an example: #!/bin/bash cd some_dir ./configure --some-flags make make install So in this case if the script can't change to the indicated directory then it would certainly not want to do a ./configure afterwards if it fails. Now I'm well aware that I could have an if check for each command (which I think is a hopeless solution), but is there a global setting to error setting terminal make the script exit if one of the commands fails? bash shell exit share|improve this question edited Mar 29 '15 at 23:26 asked May 20 '10 at 4:21 radman 5,65962242 I did have a quick look for duplicates and couldn't find any. –radman May 20 '10 at 4:22 1 answer goes to Adam for the detail regarding set -e (which is exactly wanted). Also thanks to a_m0d for the info on traps (though not 100% relevant). –radman May 20 '10 at 5:07 add a comment| 7 Answers 7 active oldest votes up vote 447 down vote accepted Use the set -e builtin: #!/bin/bash set -e # Any subsequent(*) commands which fail will cause the shell script to exit immediately Alternatively, you can pass -e on the command line: bash -e my_script.sh You can also disable this behavior with set +e. (*) Note: The shell does not exit if the command that fails is part of the command list immediately following a while or until keyword, part of the test in an if statement, part of a && or || list, or if the command's return value is being inverted via ! (from man bash) share|improve this answer edited Jan 19 '15 at 16:52 Gilead 91211322 answered May 20 '10 at 4:36 Adam Rosenfield 242k66373493 1 Is this also a Bourne Shell builtin? –Tom May 16 '12 at 19:03 3 @Tom Yes: See pubs.opengroup.org/onlinepubs/009695399/util