I am using pipes (specifically piping out) in Perl to put an array from one file into an array in a different file. I can't figure out how to transfer the array. I kow how to open the pipe : open (FILEHANDLE, "| file") or die~
but how do I transfer the array. I think it has something to do with... (1 Reply)
Hi, I am trying to write a program that will pipe any number of programs together like in the linux shell. As an example, the below code tries to execute "cat data | grep int | cut -b 1-10." The problem is that the programs never get executed for some reason. It seems like the first program... (3 Replies)
I've got a file with lots of commands I want to run in it. They're formatted like so:
cp /path/to/file /path/to/new/file
and on and on and on.
Hundreds of them.
Anyways, I'd like to execute them one at a time, then check what time it is, and repeat this process until 7am.
I can... (3 Replies)
Hi,
To explain this question I will have to go into a bit of detail. I hope you don't mind.
currently I have a log handler (an already compiled c++ version) and what it does is makes a log file and writes all the unix output (echo, etc) of a script to that log file. To me the log_handler is... (3 Replies)
Hi,
I'm trying to wrap my head around piping in C - I've got a small C program that forks and pipes stuff from the child process to the parent process.
Currently the child process calls a C program that squirts out random numbers which then pipes the result to the parent process.
The... (0 Replies)
Hi,
I need to use a double grep so to speak. I need to grep for a particular item say BOB and then for each successful result I need to grep for another item say SMITH.
I tried grep "BOB" filename | grep "SMITH"
but it does not seem to work.
I can achieve my desired result using an... (12 Replies)
Hi everybody,
I have a big file with blast results (if you know what this means, otherwise look at it just as a text file with a specific form).
I am trying to extract some ids from within this file, which have certain parameters.
For example, some Of my IDs have the term 'No hit results'... (1 Reply)
Hi ,
I have following code in my shell script :
"$TS_BIN/tranfrmr" "${TS_SETTINGS}/tranfrmr_p1.stx" "${TS_LOGS}/tranfrmr_p1.err" | (
"$TS_BIN/cusparse" "${TS_SETTINGS}/cusparse_p2.stx" "${TS_LOGS}/cusparse_p2.err" | (
"$TS_BIN/tsqsort" "${TS_SETTINGS}/srtforpm_p3.stx"... (8 Replies)
Hey guys. I'm very new to Unix. I'm pretty fluent in Java and C, but I have never actually used Unix for anything. I am in an Operating Systems course now and I have an assignment to write a piece of code that involves forks and piping. I'm stuck.
1. The problem statement, all variables and... (6 Replies)
Discussion started by: itsjimmy91
6 Replies
LEARN ABOUT DEBIAN
mp4track
MP4TRACK(1) MP4v2 Utilities MP4TRACK(1)NAME
mp4track - manual page for mp4track - MP4v2 2.0.0
SYNOPSIS
mp4track [OPTION]... [PARAMETERS]... ACTION file...
DESCRIPTION
For each mp4 file specified, perform the specified ACTION. An action must be specified. Some options are not applicable to some actions.
ACTIONS
--list list all tracks in mp4
--enabled BOOL
set trak.tkhd.flags (enabled bit)
--inmovie BOOL
set trak.tkhd.flags (inMovie bit)
--inpreview BOOL
set trak.tkhd.flags (inPreview bit)
--layer NUM
set trak.tkhd.layer
--altgroup NUM
set trak.tkhd.alternate_group
--volume FLOAT
set trak.tkhd.volume
--width FLOAT
set trak.tkhd.width
--height FLOAT
set trak.tkhd.height
--language CODE
set trak.mdia.mdhd.language
--hdlrname STR
set trak.mdia.hdlr.name
--udtaname STR
set trak.udta.name.value
--udtaname-remove
remove trak.udta.name atom
--colr-list
list all colr-boxes in mp4
--colr-add
add colr-box to a video track
--colr-set
set colr-box parms
--colr-remove
remove colr-box from track
--pasp-list
list all pasp-boxes in mp4
--pasp-add
add pasp-box to a video track
--pasp-set
set pasp-box parms
--pasp-remove
remove pasp-box from track
PARAMETERS
--track-any
act on any/all tracks
--track-index IDX
act on track index IDX
--track-id ID
act on track id ID
--colr-parms CSV
where CSV is IDX1,IDX2,IDX3
--colr-parm-hd
equivalent to --colr-parms=1,1,1
--colr-parm-sd
equivalent to --colr-parms=6,1,6
--pasp-parms CSV
where CSV is hSPACING,vSPACING
OPTIONS
-z, --optimize
optimize mp4 file after modification
-y, --dryrun
do not actually create or modify any files
-k, --keepgoing
continue batch processing even after errors
-o, --overwrite
overwrite existing files when creating
-f, --force
force overwrite even if file is read-only
-q, --quiet
equivalent to --verbose 0
-d, --debug NUM
increase debug or long-option to set NUM
-v, --verbose NUM
increase verbosity or long-option to set NUM
-h, --help
print brief help or long-option for extended help
--version
print version information and exit
DEBUG LEVELS (for raw mp4 file I/O)
0 supressed
1 add warnings and errors (default)
2 add table details
3 add implicits
4 everything
VERBOSE LEVELS
0 warnings and errors
1 normal informative messages (default)
2 more informative messages
3 everything
mp4track - MP4v2 2.0.0 June 2012 MP4TRACK(1)