Sponsored Content
Full Discussion: Bash while read line
Top Forums Shell Programming and Scripting Bash while read line Post 302910489 by chrisjorg on Thursday 24th of July 2014 07:44:14 PM
Old 07-24-2014
Bash while read line

I have a script batch_vmdgenpqr.sh which has a problem:


Code:
#!/bin/bash
while read line
do
      vmd.sh -dispdev text -e vmdgenpqr.tcl -args $line
done<file


The do line calls another program, VMD (called by vmd.sh) and it requires the values from $line, but this is not recognised by vmd. I'm not asking anyone to comment on VMD but is BASH passing on the correct variable?

Code:
[user]$ ./batch_vmdgenpqr.sh 
Info) VMD for LINUXAMD64, version 1.9.1 (February 1, 2012)
Info) http://www.ks.uiuc.edu/Research/vmd/                         
Info) Email questions and bug reports to vmd@ks.uiuc.edu           
Info) Please include this reference in published work using VMD:   
Info)    Humphrey, W., Dalke, A. and Schulten, K., `VMD - Visual   
Info)    Molecular Dynamics', J. Molec. Graphics 1996, 14.1, 33-38.
Info) -------------------------------------------------------------
Info) Multithreading available, 32 CPUs detected.
Info) Free system memory: 126641MB (98%)
Info) Creating CUDA device pool and initializing hardware...
CUDA error: invalid device symbol, CUDAClearDevice.cu line 62
Info) Detected 1 available CUDA accelerator:
Info) [0] Quadro K5000        8 SM_3.0 @ 0.71 GHz, 4.0GB RAM, KTO, OIO, ZCP
Info) Dynamically loaded 2 plugins in directory:
Info) /opt/vmd-1.9.1/plugins/LINUXAMD64/molfile
can't read "line": no such variable


Last edited by Don Cragun; 07-24-2014 at 08:56 PM.. Reason: Add missing ending CODE tag.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to read the value from a specific line and column BASH

Hi All, I have the same problem as the one posted in https://www.unix.com/shell-programming-scripting/96097-how-read-value-specific-line-column-csh-variable.html but I'm using bash. Can anyone tell me how I have to modify the code to make it bash compatible? eval `awk 'NR==3{print "set... (5 Replies)
Discussion started by: f_o_555
5 Replies

2. Shell Programming and Scripting

bash: read file line by line (lines have '\0') - not full line has read???

I am using the while-loop to read a file. The file has lines with null-terminated strings (words, actually.) What I have by that reading - just a first word up to '\0'! I need to have whole string up to 'new line' - (LF, 10#10, 16#A) What I am doing wrong? #make file 'grb' with... (6 Replies)
Discussion started by: alex_5161
6 Replies

3. Shell Programming and Scripting

BASH: Break line, read, break again, read again...

...when the lines use both a colon and commas to separate the parts you want read as information. The first version of this script used cut and other non-Bash-builtins, frequently, which made it nice and zippy with little more than average processor load in GNOME Terminal but, predictably, slow... (2 Replies)
Discussion started by: SilversleevesX
2 Replies

4. Shell Programming and Scripting

speeding up bash script with "while read line"

Hello everybody, I'm still slowly treading my way into bash scripting (without any prior programming experience) and hence my code is mostly what some might call "creative" if they meant well :D I have created a script that serves its purpose but it does so very slowly, since it needs to work... (4 Replies)
Discussion started by: origamisven
4 Replies

5. Shell Programming and Scripting

Help with Bash piped while-read and a read user input at the same time

Hi I am new to writing script and want to use a Bash Piped while-read and read from user input. if something happens on server.log then do while loop or if something happend on user input then do while loop. Pseudocode something like: tail -n 3 -f server.log | while read serverline || read... (8 Replies)
Discussion started by: MyMorris
8 Replies

6. Shell Programming and Scripting

Bash script to read a file from particular line till required line and process

Hi All, Am trying to write wrapper shell/bash script on a utility tool for which i need to pass 2 files as arugment to execute utility tool. Wraper script am trying is to do with above metion 2 files. utility tool accepts : a. userinfo file : which contains username b. item file : which... (2 Replies)
Discussion started by: Optimus81
2 Replies

7. Shell Programming and Scripting

[BASH] read 'line' issue with leading tabs and virtual line breaks

Heyas I'm trying to read/display a file its content and put borders around it (tui-cat / tui-cat -t(ypwriter). The typewriter-part is a 'bonus' but still has its own flaws, but thats for later. So in some way, i'm trying to rewrite cat using bash and other commands. But sadly it fails on... (2 Replies)
Discussion started by: sea
2 Replies

8. UNIX for Advanced & Expert Users

[BASH] Read value of variable, but not comment on the same line

Heyas So while i'm trying to increase security/usability of my TUI commands, i'm currently at tui-conf-get. There was also a bug, i wanted to fix, but sadly that bugfix is more insecure - but twice as fast as my current buggy method. I've added a getopts toggle, '-s' to toggle beSecure,... (8 Replies)
Discussion started by: sea
8 Replies

9. Shell Programming and Scripting

With script bash, read file line per line starting at the end

Hello, I'm works on Ubuntu server My goal : I would like to read file line per line, but i want to started at the end of file. Currently, I use instructions : while read line; do COMMAND done < /var/log/apache2/access.log But, the first line, i don't want this. The file is long... (5 Replies)
Discussion started by: Fuziion
5 Replies

10. Shell Programming and Scripting

Read line from serial device with BASH

I'm new to Linux (Ubuntu 16.04), and very new to BASH scripting. I have a Numato 8-channel USB GPIO device, which is a DAQ that appears in the system as a serial port. In Linux it appears as ttyACM0. I can easily manipulate a GPO with, for example: echo "gpio set 7" > /dev/ttyACM0 ...followed... (12 Replies)
Discussion started by: Chalk-X
12 Replies
DPKG-WWW(1)						      General Commands Manual						       DPKG-WWW(1)

NAME
dpkg-www - program to remotely open a WWW Debian package browser SYNOPSIS
dpkg-www [-s|--stdout] [-h|--host host] [query] DESCRIPTION
dpkg-www is used to remotely control a WEB browser and open a dpkg URL on the local host from an interactive shell or script. If the command is invoked while running under X-window the script will try to find an installed X browser to open the specified URL. If not running under X it will try to use a text browser instead. If Netscape is found and a Netscape instance is already running it will be asked to open the dpkg URL on localhost with the optional query supplied on the command line. If there is no browser running, it will start automatically a new one. The functionality provided by this program is identical to running a web browser with the -remote openURL(http://localhost/cgi-bin/dpkg) argument or opening the same URL from within the browser. dpkg-www-installer is an helper application which can configured in the WWW browser for web installation. It should never be invoked directly by the user. OPTIONS
-s, --stdout Redirect output to stdout. Requires one of the text browsers (lynx, lynx-ssl or links) installed. -h, --host host Send the query to a remote host, where dpkg-www must be installed. query Specifies an optional package name, an absolute pathname or a query argument which is passed to the dpkg cgi-bin. See dpkg-www(8) for more information about the use of the cgi. FILES
/etc/dpkg-www.conf ~/.dpkg-www Configuration files for dpkg-www. It is not necessary for these files to exist, there are sensible defaults for everything, but you can specify your preferred www browser with the DPKG_WWW_BROWSER variable, for example: DPKG_WWW_BROWSER=mozilla EXAMPLES
dpkg-www This would open a dpkg URL on localhost listing all the installed packages. dpkg-www bash This would open a dpkg URL asking info on the bash package. dpkg-www -h pisolo bash This would open a dpkg URL asking info on the bash package on host pisolo. dpkg-www 'dpkg*' This would open a dpkg URL listing all packages matching dpkg*. dpkg-www /bin/bash This would open a dpkg URL asking info on the package(s) owning the file /bin/bash . dpkg-www depends=svgalib This would open a dpkg URL listing all packages depending on svgalib. dpkg-www --stdout depends=awk | grep ^ii This would list on stdout all packages depending on awk and grep all lines of installed packages. SEE ALSO
dpkg(8), dpkg-www(8) AUTHOR
Massimo Dal Zotto <dz@debian.org>. Bugs should be reported via the normal Debian bug reporting system. LICENCE
dpkg-www is licensed under the GNU General Public License version 2. September 1, 2004 DPKG-WWW(1)
All times are GMT -4. The time now is 05:24 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy