What indication do you have that "something in the syntax is tripping it up"? What are the symptoms that something is going wrong?
Of course, one might guess that part of your problem is with the command inside your for loop:
You define, but do not use, the variable NEWFILE in the command substitution that runs in a subshell environment and disappears before your for loop starts running. So, in that command $NEWFILE will expand to a constant (probably an empty string) value instead of a value based on the name of the file you're processing.
Does the vlc utility really want a sub-option of the form acce~ss=file, or is the tilde (~) in that string a typo?
Instead of throwing away the diagnostic messages produced by the code you're running (2>/dev/null), it might help to actually read those diagnostics and see if they provide any insight into what might be going wrong.
I would also imagine that invoking sed 12 million times makes your script take a long time before it ever gets to the point that it invokes vlc the first time. Why not use a couple of variable expansions inside the loop to avoid invoking sed at all? Note that this operation needs to be in a position where NEWFILE will be paired with the file value it has modified; not in someplace where the vlc command you invoke will be using unpaired $file and $NEWFILE values.
Hi,
please can someone point me in the right direction with a shell scripting problem.
I want to execute a command in a for loop and the command should be started not one-by-one meaning the for loop is waiting for the exit code , it should be started in parallel.
I have a plain text file... (3 Replies)
Hi,
I need to execute parallel with while loop.
Input File(source_file.csv) contains filenames the below
source_file.csv file contains
Customer1.txt
Product1.txt
Sales.txt
Emp.txt
Dept.txt
Based on the number of rows that file I want to run the script ‘n' times.
while... (2 Replies)
OK, I hope you can help me here: I'm trying to crack a hash using John the Ripper. (BindShell.Net: John The Ripper MPI Patch)
I'm runnig it on a cluster system using OpenMPI. But it is not working properly. If i try to run it, i get the following error:
Any idea what can be wrong? Happen on... (3 Replies)
Hi,
I have been thinking of how to script this but i have no clue at all..
Could someone please help me out or give me some idea on this?
I would like to group those lines with the same first variable in each line, joining the 2nd variables with commas.
Let's say i have the following input.
... (8 Replies)
Hi everybody,
my problem is the following:
I'm trying to run an openmpi program on a cluster (atlasz.elte.hu, it's in hungarian, but you can try google translate),
but I always got this error:
Fatal error in MPI_Init: Other MPI error, error stack:
MPIR_Init_thread(394)...........:... (0 Replies)
Hello,
My script shell is:
for i in $(seq $nb_lignes)
do
//command java
done
Please, how can i execute all iteration in parallel ?
Thank you so much. (9 Replies)
Hello All,
I want to test how much parallel ssh connections can be done on a server.
I am thinking of reading username and hostname from a file and then using a loop (may be for) to do ssh on different host.
Could anyone suggest me how can i write the script for the above.
Thank you in... (0 Replies)
I have the below code which runs on multiple databases , but this runs one-after-one. I will need this to run in parallel so that i could save a lot of time. Please help!!! Thanks in advance
for Db in `cat /var/opt/oracle/oratab |egrep -v "ASM" |grep -v \# |cut -d\: -f1`
do
{
export... (5 Replies)
Hi
I am running a loop which actually runs same script for different argument value passed to it.
while read repID
do
echo "Starting for $repID";
date;
perl process_report.pl $repID
done<${FILE_TO_READ}
However this runs in sequence.
I want the loop to not to wait for perl to... (3 Replies)
Hi,
I am using solaris 5.10 environment and need help on doing parallel increment of nested for loop.
Samples
#inside the code the values assigned to a variable by another awk command will be like
a=/xyz/pg/as
/xyz/pg/as2
/xyz/pg/as3
b=/xyz/sd/fd1
/xyz/sd/fd2
/xyz/sd/fd3
for q in... (1 Reply)
Discussion started by: ananan
1 Replies
LEARN ABOUT CENTOS
funtbl
funtbl(1) SAORD Documentation funtbl(1)NAME
funtbl - extract a table from Funtools ASCII output
SYNOPSIS
funtable [-c cols] [-h] [-n table] [-p prog] [-s sep] <iname>
DESCRIPTION
[NB: This program has been deprecated in favor of the ASCII text processing support in funtools. You can now perform fundisp on funtools
ASCII output files (specifying the table using bracket notation) to extract tables and columns.]
The funtbl script extracts a specified table (without the header and comments) from a funtools ASCII output file and writes the result to
the standard output. The first non-switch argument is the ASCII input file name (i.e. the saved output from funcnts, fundisp, funhist,
etc.). If no filename is specified, stdin is read. The -n switch specifies which table (starting from 1) to extract. The default is to
extract the first table. The -c switch is a space-delimited list of column numbers to output, e.g. -c "1 3 5" will extract the first
three odd-numbered columns. The default is to extract all columns. The -s switch specifies the separator string to put between columns.
The default is a single space. The -h switch specifies that column names should be added in a header line before the data is output. With-
out the switch, no header is prepended. The -p program switch allows you to specify an awk-like program to run instead of the default
(which is host-specific and is determined at build time). The -T switch will output the data in rdb format (i.e., with a 2-row header of
column names and dashes, and with data columns separated by tabs). The -help switch will print out a message describing program usage.
For example, consider the output from the following funcnts command:
[sh] funcnts -sr snr.ev "ann 512 512 0 9 n=3"
# source
# data file: /proj/rd/data/snr.ev
# arcsec/pixel: 8
# background
# constant value: 0.000000
# column units
# area: arcsec**2
# surf_bri: cnts/arcsec**2
# surf_err: cnts/arcsec**2
# summed background-subtracted results
upto net_counts error background berror area surf_bri surf_err
---- ------------ --------- ------------ --------- --------- --------- ---------
1 147.000 12.124 0.000 0.000 1600.00 0.092 0.008
2 625.000 25.000 0.000 0.000 6976.00 0.090 0.004
3 1442.000 37.974 0.000 0.000 15936.00 0.090 0.002
# background-subtracted results
reg net_counts error background berror area surf_bri surf_err
---- ------------ --------- ------------ --------- --------- --------- ---------
1 147.000 12.124 0.000 0.000 1600.00 0.092 0.008
2 478.000 21.863 0.000 0.000 5376.00 0.089 0.004
3 817.000 28.583 0.000 0.000 8960.00 0.091 0.003
# the following source and background components were used:
source_region(s)
----------------
ann 512 512 0 9 n=3
reg counts pixels sumcnts sumpix
---- ------------ --------- ------------ ---------
1 147.000 25 147.000 25
2 478.000 84 625.000 109
3 817.000 140 1442.000 249
There are four tables in this output. To extract the last one, you can execute:
[sh] funcnts -s snr.ev "ann 512 512 0 9 n=3" | funtbl -n 4
1 147.000 25 147.000 25
2 478.000 84 625.000 109
3 817.000 140 1442.000 249
Note that the output has been re-formatted so that only a single space separates each column, with no extraneous header or comment informa-
tion.
To extract only columns 1,2, and 4 from the last example (but with a header prepended and tabs between columns), you can execute:
[sh] funcnts -s snr.ev "ann 512 512 0 9 n=3" | funtbl -c "1 2 4" -h -n 4 -s " "
#reg counts sumcnts
1 147.000 147.000
2 478.000 625.000
3 817.000 1442.000
Of course, if the output has previously been saved in a file named foo.out, the same result can be obtained by executing:
[sh] funtbl -c "1 2 4" -h -n 4 -s " " foo.out
#reg counts sumcnts
1 147.000 147.000
2 478.000 625.000
3 817.000 1442.000
SEE ALSO
See funtools(7) for a list of Funtools help pages
version 1.4.2 January 2, 2008 funtbl(1)