06-18-2013
Cp and create files as {,.bak}
Hello Guys,
As the perefect lazy administrator was wondering if is possible to create several files from one instance as the quick tip of doing this using "cp" ;
$ cp demofile demofile.bak
or
$ cp demofile{,.bak}
$ls
demofile.bak
Something like the following e.g. using "touch" ...
v1ct0r$ touch test{1..8}.txt
v1ct0r$ ls
test1.txt test2.txt test3.txt test4.txt test5.txt test6.txt test7.txt test8.txt
...my try;
v1ct0r$ touch uno
v1ct0r$ cp uno{,3..4}
v1ct0r$ ls
uno uno3..4
...my desire output:
uno uno3 uno4
Thanks!
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
hi guys! i want my user to create some new files in a directory:
i would like the user to choose a file name and then to create some kind of user friendly utility that makes my user write what he/she wants in the file and then save it in the chosen directory.
let's say that in my programme i... (2 Replies)
Discussion started by: fiol73
2 Replies
2. UNIX for Dummies Questions & Answers
Hello
I have a ton of files in a directory of the format app.log.2008-04-04
I'd like to run a command that would archive each of these files as app.log.2008-04-04.tgz
I tried a few combinations of find with xargs etc but no luck.
Thanks
Amit (4 Replies)
Discussion started by: amitg
4 Replies
3. Shell Programming and Scripting
Requirement:-
SQLs
select name from v$datafile;
select name from v$controlfile;
select name from v$tempfile;
select MEMBER from v$logfile;
These sqls has to run in one script and o/p of each sql has to write in seperate files.But the o/p is like if we issue
select name from... (2 Replies)
Discussion started by: Sanal
2 Replies
4. UNIX for Dummies Questions & Answers
Hi
cp times.csv{,.bak}makes a copy with *.bak extension. How this works?
Whats the gimmick here? Can't google special characters (1 Reply)
Discussion started by: slashdotweenie
1 Replies
5. Shell Programming and Scripting
HI,
I would like to create the files as
file1.txt
file2.txt
file3.txt
......
.......
.......
filen.txt
in a single unix command, i dont want to use the loops.
n is user specific
Kindly help me in this.
THank you
Jagadeesh (2 Replies)
Discussion started by: jagguvarma
2 Replies
6. Shell Programming and Scripting
I need a script file for backup (zip or tar or gz) of old log files in our unix server (causing the space problem). Could you please help me to create the zip or gz files for each log files in current directory and sub-directories also?
I found one command which is to create gz file for the... (4 Replies)
Discussion started by: Mallikgm
4 Replies
7. Shell Programming and Scripting
Hi,
Is there a direct command or need to write a shell script for following requirement?
Everyday a folder is populated with approx 25k to 30k xml files. I need to create multiple zip files in the same folder each containing 50 xml files. The last zip file may or may not contain 50 xml files.... (6 Replies)
Discussion started by: Rakesh Thobula
6 Replies
8. Shell Programming and Scripting
Hi,
Can anyone help me how to convert a .csv file to a .pdf file using shell script
Thanks (2 Replies)
Discussion started by: ssk250
2 Replies
9. Shell Programming and Scripting
good morning friends
I have a problem
, I have a file with 2 million records, but that can be variable, I need to split that file and drop several files in 500,000 thousand records, someone can help me with some unix shell code
thank you!!! (7 Replies)
Discussion started by: tricampeon81
7 Replies
h5jam(1) General Commands Manual h5jam(1)
NAME
h5jam - Add a user block to a HDF5 file
SYNOPSIS
h5jam -u user_block -i in_file.h5 [-o out_file.h5] [--clobber]
DESCRIPTION
h5jam concatenates a user_block file and an HDF5 file to create an HDF5 file with a user block. The user block can be either binary or
text. The output file is padded so that the HDF5 header begins on byte 512, 1024, etc.. (See the HDF5 File Format.)
If out_file.h5 is given, a new file is created with the user_block followed by the contents of in_file.h5. In this case, infile.h5 is
unchanged.
If out_file.h5 is not specified, the user_block is added to in_file.h5.
If in_file.h5 already has a user block, the contents of user_block will be added to the end of the existing user block, and the file
shifted to the next boundary. If --clobber is set, any existing user block will be overwritten.
EXAMPLE USAGE
Create new file, newfile.h5, with the text in file mytext.txt as the user block for the HDF5 file file.h5.
h5jam -u mytext.txt -i file.h5 -o newfile.h5
Add text in file mytext.txt to front of HDF5 dataset, file.h5.
h5jam -u mytext.txt -i file.h5
Overwrite the user block (if any) in file.h5 with the contents of mytext.txt.
h5jam -u mytext.txt -i file.h5 --clobber
RETURN VALUE
h5jam returns the size of the output file, or -1 if an error occurs.
CAVEATS
This tool copies all the data (sequentially) in the file(s) to new offsets. For a large file, this copy will take a long time.
The most efficient way to create a user block is to create the file with a user block (see H5Pset_user_block), and write the user block
data into that space from a program.
The user block is completely opaque to the HDF5 library and to the h5jam and h5unjam tools. The user block is simply read or written as a
string of bytes, which could be text or any kind of binary data. It is up to the user to know what the contents of the user block means
and how to process it.
When the user block is extracted, all the data is written to the output, including any padding or unwritten data.
This tool moves the HDF5 file through byte copies, i.e., it does not read or interpret the HDF5 objects.
SEE ALSO
h5dump(1), h5ls(1), h5diff(1), h5import(1), gif2h5(1), h52gif(1), h5perf(1), h5unjam(1).
h5jam(1)