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Top Forums Shell Programming and Scripting Remove lines in file1 with values from file2 Post 302591945 by palex on Sunday 22nd of January 2012 12:30:35 AM
Old 01-22-2012
Remove lines in file1 with values from file2

Hello,
I have two data files:

file1
Code:
12345 aa bbb cccc
98765 qq www uuuu
76543 pp rrr bbbbb
34567 nn ccc sssss
87654 qq ppp rrrrr

file2
Code:
98765
34567

I need to remove the lines from file1 if the first field contains a value that appears in file2:

output
Code:
12345 aa bbb cccc
76543 pp rrr bib
87654 qq ppp rrrrr

Thanks so much!

Moderator's Comments:
Mod Comment Please use [CODE][/CODE] tags where appropriate, thank you

Last edited by vbe; 01-22-2012 at 04:58 AM..
 

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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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