'file2' can be any length, but it actually has to load all of file1 into memory at once! On a 32-bit computer, this may not even be possible even if you have gigs of memory due to 32-bit addresss limitations.
If the file's too large to fit in memory, you may have to process it in batches.
...will produce splitaa, splitbb, ...splitzz files of a few megs each which you can process like
These 3 Users Gave Thanks to Corona688 For This Post:
Hi, i've two files (file1, file2) i want to take value (in column1) and search in file2 if the they match print the value from file2.
this is what i have so far.
awk 'FILENAME=="file1"{ arr=$1 }
FILENAME=="file2"
{print $0}
' file1 file2 (2 Replies)
Wat does this command do?
fileA is a subset of fileB..now, i need to find the lines in fileB that are not in fileA...i.e fileA - fileB.
diff fileA fileB gives the ouput but the format looks no good....
I just need the contents alone not the line num etc. (7 Replies)
file1 has pgap500 500
file2 has bunch of data
cat file1 file2 > file3
cp file2 file3.dat then vi pgap500 500 onto 1st line
compare file3 and fil3.dat, they are not the same.
any idea ? the 1st line, i want to put pg500 xxx
---------- Post updated at 07:35 AM ---------- Previous... (2 Replies)
Hello, I am new to shell scripting and i need to create a script with the following directions and I can not figure it out.
Create a shell script called newest.bash that takes two filenames as input arguments ($1 and $2) and prints out the name of the newest file (i.e. the file with the... (1 Reply)
I have very limited coding skills but I'm wondering if someone could help me with this. There are many threads about matching strings in two files, but I have no idea how to add a column from one file to another based on a matching string.
I'm looking to match column1 in file1 to the number... (3 Replies)
Hi guys!
I'm trying to write something to find each line of file1 into file2, if line is found return YES, if not found return NO. The result can be written to a new file.
Can you please help me out?
FILE1 INPUT:
WATER
CAR
SNAKE
(in reality this file has about 600 lines each with a... (2 Replies)
HI,
I would like a little help on writing a if statement.
What i have so far is:
#!/bin/bash
FILE1=path/to/file1
FILE2=path/to/file2
echo ${FILE1} ${FILE2}
if ]
then
echo file1 and file2 not found
else
echo FILE ok
fi (6 Replies)
I want to print only the lines in file2 that match file1, in the same order as they appear in file 1
file1
file2
desired output:
I'm getting the lines to match
awk 'FNR==NR {a++}; FNR!=NR && a' file1 file2
but they are in sorted order, which is not what I want:
Can anyone... (4 Replies)
I need to know if file1 is a subset of file2 i.e all the contents of file1 are present in file2 or not.
Here is how i would do it.
Read line by line file1 and grep every line in file2 in a for loop. any failing grep would means that it is not a subset.
Is there a quicker or easier way... (3 Replies)
I am trying to use awk to find all the $2 values in file2 which is ~30MB and tab-delimited, that are between $2 and $3 in file1 which is ~2GB and tab-delimited.
I have just found out that I need to use $1 and $2 and $3 from file1 and $1 and $2of file2 must match $1 of file1 and be in the range... (6 Replies)
Discussion started by: cmccabe
6 Replies
LEARN ABOUT DEBIAN
h5diff
h5diff(1) General Commands Manual h5diff(1)NAME
h5diff - Compares two HDF5 files and reports the differences.
SYNOPSIS
h5diff file1 file2 [OPTIONS] [object1 [object2 ] ]
DESCRIPTION
h5diff is a command line tool that compares two HDF5 files, file1 and file2, and reports the differences between them.
Optionally, h5diff will compare two objects within these files. If only one object, object1, is specified, h5diff will compare object1 in
file1 with object1 in file2. In two objects, object1 and object2, are specified, h5diff will compare object1 in file1 with object2 in
file2. These objects must be HDF5 datasets.
object1 and object2 must be expressed as absolute paths from the respective file's root group.
Additional information, with several sample cases, can be found in the document H5diff Examples.
OPTIONS
file1 file2
The HDF5 files to be compared.
-h Print all differences.
-r Print only the names of objects that differ; do not print the differences. These objects may be HDF5 datasets, groups, or named
datatypes.
-n count
Print difference up to count differences, then stop. count must be a positive integer.
-d delta
Print only differences that are greater than the limit delta. delta must be a positive number. The comparison criterion is whether
the absolute value of the difference of two corresponding values is greater than delta (e.g., |a-b| > delta, where a is a value in
file1 and b is a value in file2).
-p relative
Print only differences that are greater than a relative error. relative must be a positive number. The comparison criterion is
whether the absolute value of the difference 1 and the ratio of two corresponding values is greater than relative (e.g., |1-(b/a)| >
relative where a is a value in file1 and b is a value in file2).
object1 object2
Specific object(s) within the files to be compared.
EXAMPLES
The following h5diff call compares the object /a/b in file1 with the object /a/c in file2:
h5diff file1 file2 /a/b /a/c
This h5diff call compares the object /a/b in file1 with the same object in file2:
h5diff file1 file2 /a/b
And this h5diff call compares all objects in both files:
h5diff file1 file2
SEE ALSO h5dump(1), h5ls(1), h5repart(1), h5import(1), gif2h5(1), h52gif(1), h5perf(1)h5diff(1)