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Top Forums Shell Programming and Scripting Passing multiple files to awk for processing in bash script Post 302905690 by shree11 on Friday 13th of June 2014 04:55:37 AM
Old 06-13-2014
@CarloM,

I tried with the code:
Code:
awk '{ 
stuff
}' file1.txt $(hadoop fs -ls /user/user/data/file2.txt)

where file1 -> reading from the local
fiel2 -> reading the file from HDFS(hadoop)

But it's saying:
Quote:
awk: cmd. line:12: (FILENAME=file1.txt FNR=5) fatal: cannot open file `Found' for reading (No such file or directory)
Not getting why it is giving error for file1 although file1.txt is exists in the local directory.When i tried removing the part $(hadoop fs -ls /user/user/data/file2.txt) and copy the file2.txt to local and give the local path like }' file1.txt file2.txt its working fine.

So it's not allowing to take the file directly from hdfs to process using awk command . How how can i do it? is there any alternative for this?
NOTE: i don't want to copy the hadoop files to local directory to acheive this

Thanks
 

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DIFF(1) 						      General Commands Manual							   DIFF(1)

NAME
diff - print differences between two files SYNOPSIS
diff [-c | -e | -C n] [-br]file1 file2 OPTIONS
-C n Produce output that contains n lines of context -b Ignore white space when comparing -c Produce output that contains three lines of context -e Produce an ed-script to convert file1 into file2 -r Apply diff recursively to files and directories of EXAMPLES
diff file1 file2 # Print differences between 2 files diff -C 0 file1 file2 # Same as above diff -C 3 file1 file2 # Output three lines of context with every diff -c file1 file2 # Same diff /etc /dev # Compares recursively the directories /etc and /dev diff passwd /etc # Compares ./passwd to /etc/passwd DESCRIPTION
the same name, when file1 and file2 are both directories" difference encountered" Diff compares two files and generates a list of lines telling how the two files differ. Lines may not be longer than 128 characters. If the two arguments on the command line are both directories, diff recursively steps through all subdirectories comparing files of the same name. If a file name is found only in one directory, a diagnostic message is written to stdout. A file that is of either block special, character special or FIFO special type, cannot be compared to any other file. On the other hand, if there is one directory and one file given on the command line, diff tries to compare the file with the same name as file in the directory directory. SEE ALSO
cdiff(1), cmp(1), comm(1), patch(1). DIFF(1)
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