creating a hard link between two files

I'm quite new to Linux and specially to the shell and all of its commands. My goal is to move some files in every directory to another directory. To be more clear, I have this:

/DIR - /dir1 - file1 - file2 - ... - /dir2 - file1 - file2 - ... - ... - /dirn - file1 - file2 - ...

Hi Freinds,

i have a file1 as below file1

Code:

1|ndmf|fdd|d3484|34874 2|jdehf|wru7|478|w489 3|dfkj|wej|484|49894 file2 contains lakhs of records and not in sorted order i want to retrive only the records from file2 by searcing the first field of file 1

i used

Code:

grep ^1 file2 >out.txt grep ^2 file2 >>out.txt grep ^3 file2>>out.txt this i need to do 3 time

I have file1 and file2 I lookup field3 from file2 in field1 of file1 and if there is a match, output field 2,3,5 from file2. I now want to add field2 of file1 in the output.

I suspect what I have to do is read the entire line of file1 into a 2 dim array? pls help.

Hi Everyone!

I would like ask if there's a better way I can delete multiple lines in a file1 by collecting all criteria from file2.

file1: a b c d e f

file2: a e f

The expected value will be: b c d

The code below seems to work however if is taking much time when dealing with huge records.

Hi Gurus,

I need to list only the files with out certain extension.

For eg from the following list of files:

Quote:

file1 file1.20120130 file1.20120225 file2 file2.20120115 file2.20120320

I need to only list:

Quote:

file1 file2

Thanks Shash

I have a directory that has 800 files like this:

file1.png file1@2x.png

file2.png file2@2x.png

file3.png file3@2x.png

... etc

I need to create zip files like this

file1.zip (containing file1.png and file1@2x.png) file2.zip (containing file2.png and file2@2x.png) file3.zip (containing file3.png and file3@2x.png)

Is there a magic command I can use to do that?

thanks.

Hello, guys!

I want to find difference between two file according $1. I using the following code, but get wrong results.

Code: awk -F, 'NR==FNR{A[$1]=$0; next} $1!=A[$1]' file1 file2 I can using the following code get same record between files.

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 following the string "Gene_" in file2.

I want to compare two files. I think using grep is the way to go but I do not know how to set this up. Let me show an example: File1 has 1000 items, File2 has 700 items I need to take the first item in File1 and search the entire contents of File2 to see if there is a match there. IF there is a match (meaning the same item is in both File1 and File2) then do nothing.