Gosh I hope this isn't homework related but this mish mash of commands was too much for me. It's way too easy to do this kind of stuff right in awk by itself. Take a look at this quick example (just so happens I just helped a coworker with a nearly identical business related problem on very large flat files):
I have a number of simulation log files and I want to get a total count of the "PASSED" expression in them. If I use grep -c <files>, grep would give a tally for each file. I just want one number, the total count. How do I do that? (4 Replies)
Hello all,
I always found help for my problems using the search option, but this time my request is too specific. I have two files that I want to compare. File1 is the index and File2 contains the data:
File1:
chr1 protein_coding exon 500 600 . + . gene_id "20532";... (0 Replies)
Hi,
I am trying to grep a particular string from the files of 2 different servers without copying and calculate the total count of its occurence on both files.
File structure is same on both servers and for reference as follows:
27-Aug-2010... (4 Replies)
Started using unix commands recently.
I have 50 gzip files. I want to grep each of these files for a line count based particular category in column 3. How can I do that?
For example
Sr.No Date City Description Code Address
1 06/09 NY living here 0909 10st st nyc
2 ... (5 Replies)
I want to search a bunch of files and list only those containing a minimum number of pattern matches. So if I want to identify files containing 3 (or more) instances of the pattern "said:" and I have file1 that contains the lines:
He said:
She said:
and file2 that contains the lines:
He... (3 Replies)
Hello Everyone ,
I have two files. I want to pick line from file-1 and match with the complete data in file-2 , if there is a match print all the match lines in file 3. Below is the file
cat test1.txt
vikas
vikasjain
j ain
testt
douknow
hello@vik@
# 33
||@@ vcpzxcmvhvdsh... (1 Reply)
I have a need to grep a large number of files, but only display the first result from each file. I have tried to use grep, but am not limited to it. I can use perl and awk as well. Please help! (9 Replies)
hi All, Any one answer my requirement.
I have source location
src_dir="/home/oracle/arun/IRMS-CM"
My Target location
dest_dir="/home/oracle/arun/LiveLink/IRMS-CM/$dc/$pc/$ct"
my source text files check with below example.text file content
$fn "\t" $dc "\t" $pc "\t" ... (3 Replies)
Hi There,
How do i finding files with match and without match
Normally,
I will use
grep -l 'Hello'
grep -L 'Hello World'
How do we combined (2 Replies)
Good evening, need your help please
Need to delete certain files before octobre 1 2016, so need to know how many files im going to delete, for instance
ls -lrt file_20160*.lis!wc -l
but using grep -c to another file called bplist which contains the list of all files backed up doesn match... (7 Replies)
Discussion started by: alexcol
7 Replies
LEARN ABOUT DEBIAN
plan9-grep
GREP(1) General Commands Manual GREP(1)NAME
grep, g - search a file for a pattern
SYNOPSIS
grep [ option ... ] pattern [ file ... ]
g [ option ... ] pattern [ file ... ]
DESCRIPTION
Grep searches the input files (standard input default) for lines that match the pattern, a regular expression as defined in regexp(7) with
the addition of a newline character as an alternative (substitute for |) with lowest precedence. Normally, each line matching the pattern
is `selected', and each selected line is copied to the standard output. The options are
-c Print only a count of matching lines.
-h Do not print file name tags (headers) with output lines.
-e The following argument is taken as a pattern. This option makes it easy to specify patterns that might confuse argument parsing,
such as -n.
-i Ignore alphabetic case distinctions. The implementation folds into lower case all letters in the pattern and input before interpre-
tation. Matched lines are printed in their original form.
-l (ell) Print the names of files with selected lines; don't print the lines.
-L Print the names of files with no selected lines; the converse of -l.
-n Mark each printed line with its line number counted in its file.
-s Produce no output, but return status.
-v Reverse: print lines that do not match the pattern.
-f The pattern argument is the name of a file containing regular expressions one per line.
-b Don't buffer the output: write each output line as soon as it is discovered.
Output lines are tagged by file name when there is more than one input file. (To force this tagging, include /dev/null as a file name
argument.)
Care should be taken when using the shell metacharacters $*[^|()= and newline in pattern; it is safest to enclose the entire expression in
single quotes '...'. An expression starting with '*' will treat the rest of the expression as literal characters.
G invokes grep with -n and forces tagging of output lines by file name. If no files are listed, it searches all files matching
*.C *.b *.c *.h *.m *.cc *.java *.cgi *.pl *.py *.tex *.ms
SOURCE
/src/cmd/grep
/bin/g
SEE ALSO ed(1), awk(1), sed(1), sam(1), regexp(7)DIAGNOSTICS
Exit status is null if any lines are selected, or non-null when no lines are selected or an error occurs.
GREP(1)