Melanie, what you want doesn't exist, at least not in standard UNIX. Every utility (sed, awk, ...) will create a separate file and if you want to replace your file with the trimmed one you will have to "mv" it.
Th GNU sed does indeed have the "-i" option allowing for in-place editing, but even then a temporary file (probably somewhere in /var/tmp) will be created by the tool. The same is true for editors like vi, ed, etc..
As there is no difference in principle where this temporary file is created that means that all these utilities work the same way.
If you want to preserve the i-node number of the file in question do the following: create a intermediate file and then use "cat" to overwrite the old file:
This will make sure that "file" will have the same i-node number before and after the change.
Hello,
I am passing a filename to a script to draw parameters from it. However, I want to use part of the filename as a parameter. The filename is transfer_ccf_3731_10.sh but I only need the 3731_10 part of it.
Is this possible? Any help or suggestions would be appreciated!
Regards,
J. (4 Replies)
Hi,
I have a 6G log , which is unusual to read and I want to minimize it by removing some part on the upper portion( around 4GB). what should i do? can you please help me?
thanks. (1 Reply)
Hi all,
I've been looking for how to eliminate blank spaces in a variable or strings. I've seen several ways, using sed, awk and even python. One of them is use 'tr' command, but it does not work as I expected: For example:
echo " stuff " | tr -s " "leaves one space ahead and another... (3 Replies)
1) I want to trim the zeros of the 1st file so they match the second file
2) run an automatic diff and error in lines that dont match
File1
0.8035500
1.4138000
1.6381500
1.9256110
3.8075000
13.3270000
13.4155000
94.2700000
937.7000000
File2
0.80355
1.4138
1.63815
3.8075
1.925611... (5 Replies)
Hi All,
I have a file named as
FAB1_600015_CONRAD.A0_7XYZ12345.000_LT-SWET.01_LTPA25L_20110622-161429_07_WFR12345_20110622-161429_20110712-125228.data.dis
I want to generate a directory taking only the 7XYZ12345.000_WFR12345
The length and format of the Filename will be the same... (2 Replies)
I am trying to trim spaces for the fixed width file starting from location 129 and of length 20.
I am expecting only around 40 records that will have length greater than 9. But i am getting around 4000 records.
Please help me correct the following.
nawk '{if (a=length(gsub(/... (2 Replies)
All,
i am comparing the output of one command to a numberic
if ]
but my problem is the output of follwoing is but but has some leading columns. I don't have any problme in LINUX and HP-UX. But only in AIX i am getting the leading spaces. I have developed my script on LINUX but when... (4 Replies)
Hi,
I wish to grep everything before the last "/bin" in the following string
/opt/app/bin/app1/jdk150_07/bin/IA64N/java
Desired output: "/opt/app/bin/app1/jdk150_07"
Kindly help ... (2 Replies)
i am passing below inputfils using while loop and ouput should be trim as below
INPUT:
src_SPS_d_Comment_Tran_File_20130417_001.dat
src_SPS_d_Corp_Adv_Tran_File_20130417_001.dat
src_SPS_d_Letter_Tran_File_20130417_001.dat
src_SPS_d_Loan_Level_File_20130417_001.dat... (8 Replies)
In Shell, I have output of a unix command as
test1
test2015
but I want it as
test1 test2015
can anyone help me out.
Use code tags, thanks. (3 Replies)
Discussion started by: OscarS
3 Replies
LEARN ABOUT DEBIAN
h5jam
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)