Please provide information on your attempts to resolve.
Until so, we will refrain from sharing any guidance.
The purpose of this Board is the assist users in solving their problems. We are not a coding service. Further, we are not a homework service - and sometimes posts appear to be an attempt to have someone solve a school assignment.
Finally, we urge all members of the Forum to NOT post a solution to this question until effort to resolve is demonstrated.
Thanks for showing us your efforts, as mentioned by Joeyg please always spend sometime while posting any question, provide more information(eg--> your O.S name, sample Input_file and expected output_file in code tags).
If you want to search a specific string in all the .txt files and want to print only those file names which have them inside it, then following may help you in same.
kindly give it a try and do let us know how it goes then(in detailed manner please).
Thanks for showing us your efforts, as mentioned by Joeyg please always spend sometime while posting any question, provide more information(eg--> your O.S name, sample Input_file and expected output_file in code tags).
If you want to search a specific string in all the .txt files and want to print only those file names which have them inside it, then following may help you in same.
kindly give it a try and do let us know how it goes then(in detailed manner please).
Thanks,
R. Singh
Thanks Singh,
It is giving me the output of the files.
command
Linux - OS
Last edited by Scrutinizer; 10-23-2017 at 03:17 PM..
Reason: quote tags changed to CODE tags
If all of the files are in a single directory (not spread out among subdirectories), you could try the following first:
or, if you just want the names of files containing that string (with a case insensitive match):
These might file with "argument list too long" errors depending on how many thousands of files you have, but it is easy to try it. And, if it works, it will hundreds or thousands of times faster that performing a grep on each file individually. If they won't work, you'll know quickly.
Note that I added a -F option to grep. Searching for fixed strings (even if you're doing a case-insensitive match), is faster than going through the extra complexity of matching regular expressions.
If all of the log entries use the same case, dropping the -i option will also make it run faster.
This User Gave Thanks to Don Cragun For This Post:
The grep -l "Calling appalert" gives the pathnames of the files that have a line with Calling appalert.
Do you want something else?
Then give an example: a sample of an input file with a matching and a non-matching line, and the expected output.
I have a very big input file <inputFile1.txt> which has list of mobile no
inputFile1.txt
3434343
3434323
0970978
85233
... around 1 million records
i have another file as inputFile2.txt which has some log detail big file
inputFile2.txt
afjhjdhfkjdhfkd df h8983 3434343 | 3483 | myout1 |... (3 Replies)
Hi All,
I am having a job and I need to send email when the job is running. On any other case (success,fail) I don't needed to send email. I check with BMC they told they dont have that in the version I am using.
So I created a dependent job and grepped for the status and sent email. My... (1 Reply)
Hi,
I have a number of files containing the information below.
"""""
Fundallinfo
6.3950 14.9715 14.0482
"""""
I would like to grep for Fundallinfo and use it to read the next line? I ideally would like to read the three numbers that follow in the next line and... (2 Replies)
Hi,
I'm trying to read a fille into a loop and grep for a string and print the last field of the string in the second file. Then redirect the output to another file but keeping the output in the same order as the original file.
I've tried using the following but the ouput from this does not... (3 Replies)
Hi Guys,
I have a small script which greps for the username reading from stdinput.
./file.sh pattern
pattern=$1
grep "blah blah.*$pattern" /home/user/log.txt
Instead of typing the pattern everytime i want to read the pattern from a file inside the shell script and execute the... (5 Replies)
I have two files
file1.txt
angie
mary
susan
file2.txt
angie blond
mary brunnet
susan red
christine blackI want to get this output
angie blond
mary brunnet
susan redI write
grep --file=file1.txt file2.txtand i get no results
i also wrote
cat file1.txt|while read line... (19 Replies)
Hi all,
I would like to ask whether in Unix shell/perl have any functions or command to allow grep/cat/read a file inside compressed .tgz without extract it?
I know we can tar tvf a compressed tgz but this only allow we read the path/filename contained inside the tarball. If we want to read... (3 Replies)
I have inherited the UNIX scripting duties for our team and have only been at this for a few months so I apologize for what may be a simple question.
We have a script we are reworking. Part of this script takes a parameter and reads a csv file. When it finds a matching line, the cut command is... (4 Replies)
Hello! I think this should be an easy solution. I have a large file with many fields of data. The first field has a unique identifier (a subject number) for every record for a chunk of data. Something like this:
There were ten experimental conditions (ec), but the ec is identified by only... (11 Replies)
Dear all,
I am reading a file that has 1 column. While reading I must find the line references from the another file. The following shell doesn't works.
Please help
#!/bin/bash
while read filename; do
grep ${filename} fs_full.dat >> unprocfull.dat;
done < unproc.dat
But when... (2 Replies)