12-09-2003
Quote:
cat header detail trailer > newfile
Won't that still copy the 5gb file ? I see how it is much more econimical as far as commands go though...
Thanks,
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Is there an option, for cat, head, tail, or is there any way, to display a file from last line to first? For example, my file
looks like this:
aaaa
bbbb
cccc
eeee
and I would like to print or display it like this:
eeee
cccc
bbbb
aaaa
thanks (5 Replies)
Discussion started by: jpprial
5 Replies
2. UNIX for Dummies Questions & Answers
Hi
Can anybody tell the difference between Difference between cat , cat > , cat >> and touch command in UNIX?
Thanks (6 Replies)
Discussion started by: skyineyes
6 Replies
3. UNIX for Dummies Questions & Answers
Hi,
I have a file x which is being upated continuously.
I want to add file y in the file x but at the beginning of file x.
file x file y After commands file x
eeee aaaa aaaa
gggg bbbb bbbb
hhhh... (2 Replies)
Discussion started by: baanprog
2 Replies
4. UNIX for Dummies Questions & Answers
Hello,
I have 50 text files in a directory called "AllFiles"
I want to make a program that will go inside of the "AllFiles" Directory and count the number of lines in each individual text file. Then, the program will calculate how many more lines there are over 400 in each text file and... (7 Replies)
Discussion started by: motoxeryz125
7 Replies
5. Shell Programming and Scripting
I am writing a code to append some numbers in the beginning of each line in all the files present in a directory. The number of files are really huge. The files are numbered as 1.sco, 2.sco, 4.sco (Note: 3.sco is missing).
The files currently look like this:
1.sco
2 3
5 6
6 7My task is to... (4 Replies)
Discussion started by: shoaibjameel123
4 Replies
6. Shell Programming and Scripting
I want to append file names at the beginning of a line for each row
file content
abc.txt.gz 123|654|987
bcd.txt.gz 876|trf|kjh
I want a single output file with below format
abc.txt.gz|123|654|987
bcd.txt.gz|876|trf|kjh
This one is working but only with unzip files,need to have... (3 Replies)
Discussion started by: rakesh5300
3 Replies
7. Shell Programming and Scripting
Hi,
I have multiple files having many lines like as bvelow:
file Name a.txt
abc def
def xyz
123 5678
file Name b.txt
abc def
def xyz
123 5678
I would like to append files in the below format to a new file:
file Name c.txt (7 Replies)
Discussion started by: rramkrishnas
7 Replies
8. Shell Programming and Scripting
Hi Guys,
IF i have to append data to a variable, i simply use the following. What can i do to append data to the beginning?
VAR+="data" (6 Replies)
Discussion started by: srkmish
6 Replies
9. Shell Programming and Scripting
Hi,
I now that >> will append text to the end of the text that is already inside the file.
How to append the new text infront of the text that is already in the file.
Thanks for any input.
Regards,
Chandu (3 Replies)
Discussion started by: chandrakanth
3 Replies
10. UNIX for Dummies Questions & Answers
Hi,
when I do cat for kernel parameters
cat /proc/sys/kernel/sem >> /etc/sysctl.conf
4096 4096 32 128
The above command working with out any doubt
but I want to pass it like below, need to append "kernel.sem =" and pass it to /etc/sysctl.conf kernel.sem = 4096... (2 Replies)
Discussion started by: stew
2 Replies
LEARN ABOUT DEBIAN
record
record(1) General Commands Manual record(1)
NAME
record - records *.wav files
SYNOPSIS
record [ options ]
DESCRIPTION
record records *.wav files in CD quality (i.e. 44100 Hz, 16bit, stereo). It has a input level meter, which might be useful for sound trou-
ble shooting (check if the mixer settings ok for recording from the TV card etc.)
OPTIONS
-h display help text
-o file
basename for the output file(s), a number and the .wav extension are added by record. Default is "record".
-i dev mixer control. This should be the one where you can adjust the record level for your audio source. Default is "line". "mic" and
"igain" are good candidates too. Best way to figure is to start your favorite mixer tool and check out which one works ...
-m dev set mixer device. Default is "/dev/mixer".
-d dev set audio device. Default is "/dev/dsp".
-r rate
set sample rate. Default is 44100.
-p sec peak seconds (number of seconds which should be scanned for the volume maximum). This affects both peak level display and level
triggered recording (see below). Default is 1.5 seconds.
record can also be used non-interactive:
-c enable console (non-interactive) mode.
-v be verbose (console mode only).
-t mm:ss
Limit the record time (console mode only). By default record records until stopped by a signal (by typing ^C for example).
-s size
Limit the file size (console mode only). record will continue with a new file once the limit is reached.
-n num Limit the file count (console mode only). record will stop recording after num files.
-l Enable level triggered recording (console mode only) with the default trigger level (1000).
-L level
Enable level triggered recording with the specified trigger level.
If level triggered recording is active, record will start and stop recording depending on the signal strength. Recording will be started
if the signal strength is above the trigger level (1000/32768 => around 3%). Recording will be stopped if the signal is below the trigger
level for some time (1.5 seconds by default, the -p switch changes this).
AUTHOR
Gerd Knorr <kraxel@bytesex.org>
(c) Gerd Knorr record(1)