Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: [Solved] Find entries from one file in another
Top Forums UNIX for Dummies Questions & Answers [Solved] Find entries from one file in another Post 302797347 by bakunin on Monday 22nd of April 2013 12:08:29 PM
Old 04-22-2013
If you have a look at the man page of "grep" you will notice the "-f" option. Quote from the man-page:

Code:
-f FILE, --file=FILE
	      Obtain  patterns	from  FILE, one per line.  The empty file con-
	      tains zero patterns, and therefore matches nothing.

Therefore, supposing your keys are in file "keys.txt" and you want to search for these keys in "search.txt":

Code:
grep -f keys.txt search.txt

does exactly what you want.

Reading man pages is a very commendable activity. I do it many times day when working with Unix.

I hope this helps.

bakunin
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

[Solved] Find Specific records from file and add totals into variables

Hi Eveyone, I am working on one shell script to find the specific records from data file and add the totals into variables and print them. you can find the sample data file below for more clarification. Sample Data File: PXSTYL00__20090803USA CHCART00__20090803IND... (7 Replies)
Discussion started by: veeru
7 Replies

2. Shell Programming and Scripting

Find Usage solved

How can I find the biggest file in a branch? I tried find / \*.\* | xargs du | sort -n 1,1 | head 1 but shell do nothings :( ---------- Post updated at 03:07 PM ---------- Previous update was at 02:41 PM ---------- Solved: find / -name \*.\* | xargs du | sort -nr | head -n 1 (0 Replies)
Discussion started by: Guccio
0 Replies

3. Shell Programming and Scripting

[solved] merging two files and writing to another file- solved

i have two files as file1: 1 2 3 file2: a b c and the output should be: file3: 1~a 2~b 3~c (1 Reply)
Discussion started by: mlpathir
1 Replies

4. Ubuntu

[Solved] Using Find with an exclude/exclude file

I am familiar with using tar and exclude/include files: tar zcf backup.dirs.tgz --files-from=include.mydirs --exclude-from=exclude.mydirs --no-recursion but was wondering if I could use find in the same way. I know that you can just specify the directories to exclude but my list is... (2 Replies)
Discussion started by: metallica1973
2 Replies

5. UNIX for Dummies Questions & Answers

[Solved] Assistance with find command please

Trying to locate files less than xx days old, throughout all directories/subdirectories, but excluding certain types of directories and files. The directories I want to search all contain the same characteristic (dbdef, pldef, ghdef, etc), and there are subdirectories within that I need to... (2 Replies)
Discussion started by: Condmach
2 Replies

6. Shell Programming and Scripting

find with wild card [solved]

Can somebody help me with the following syntax? I want to find all files that end with *.arc SUFFIX=".arc" find /tmp -name "\*$SUFFIX" -print 2>/dev/null ---------- Post updated at 03:45 PM ---------- Previous update was at 03:41 PM ---------- got it thanks -name... (0 Replies)
Discussion started by: BeefStu
0 Replies

7. Shell Programming and Scripting

[solved] Problem with find

hi All, I am using the command find /home/mqm/check/ -mtime +1|wc -l to get a count of the files older than a day under the check directory. But instead of getting the count of the files under check directory I m getting a count including the check directory itself. Can someone please tell... (0 Replies)
Discussion started by: jayii
0 Replies

8. UNIX for Dummies Questions & Answers

[Solved] Using w; how to list find all the users

Hi, On my system, I have about 75 users. Some uers have two or three sessions on the same systems. when I do w, it shows all the sessions. Is there any way to find only the users and not worry about how many sessions. For example: you can see sshe has four connection. I only want to know... (5 Replies)
Discussion started by: samnyc
5 Replies

9. UNIX for Dummies Questions & Answers

[Solved] Find the newest file in two directories

Hi i have two directories and files inside them Directory 1: Directory 2: These files are the same but song.mp3 in Directory 1 is newer than song.mp3 in Directory 2, and work.txt in Directory 2 is newer than work.txt in Directory 1. Now is my question. How i can compare these files... (10 Replies)
Discussion started by: Falstaff
10 Replies

10. Shell Programming and Scripting

[Solved] Find command is not working

Hello Friends, I have a problem about a little script, when i run the following two lines one by one on CLI then they work well: /usr/bin/mkdir `perl -e 'use POSIX qw(strftime); print strftime "%Y-%m-%d",localtime(time() - 30*24*60*60);'` find . -type f -name "fuseesb.log.*" -mtime 30... (5 Replies)
Discussion started by: EAGL€
5 Replies

LEARN ABOUT LINUX

colrm

COLRM(1)						    BSD General Commands Manual 						  COLRM(1)

NAME

     colrm -- remove columns from a file

SYNOPSIS

     colrm [start [stop]]

DESCRIPTION

     The colrm utility removes selected columns from the lines of a file.  A column is defined as a single character in a line.  Input is read
     from the standard input.  Output is written to the standard output.

     If only the start column is specified, columns numbered less than the start column will be written.  If both start and stop columns are spec-
     ified, columns numbered less than the start column or greater than the stop column will be written.  Column numbering starts with one, not
     zero.

     Tab characters increment the column count to the next multiple of eight.  Backspace characters decrement the column count by one.

ENVIRONMENT

     The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of colrm as described in environ(7).

EXIT STATUS

     The colrm utility exits 0 on success, and >0 if an error occurs.

SEE ALSO

     awk(1), column(1), cut(1), paste(1)

HISTORY

     The colrm command appeared in 3.0BSD.

BSD
								  August 4, 2004							       BSD
All times are GMT -4. The time now is 09:45 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy