08-18-2017
Quote:
Originally Posted by
John K
Hi Ravinder,
Thank You. What is $6 ?
Hi Rudic,
Thank You. What does NF do ?
Hello John K,
In
awk language
$ means value of any field(we could setup field's separator as per our need like in my solution I have made them to
'; and in Rudi's case it is default which is space), so
$16 means first field of the line and
NF denotes the number of fields in a line, which will print the value of last field
Thanks,
R. Singh
This User Gave Thanks to RavinderSingh13 For This Post:
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hello there
I need to find a string in an file, and then copy to a new file from the previous 6 lines to 41 lines after the string.
So, what i need to do , and just don't know how, is to find the string and copy 48 lines where the string would be in the 7th line.
I don't know if i can do it with... (10 Replies)
Discussion started by: vascobrito
10 Replies
2. Shell Programming and Scripting
I'm trying to get a script to copy a url then put it in a different place in the file.
Example is currently the script goes to a site takes the urls on it and then puts them into an html file. Only thing is I want to make them into links.
So currently lynx goes to the page takes out the urls.... (6 Replies)
Discussion started by: Paulw0t
6 Replies
3. UNIX for Advanced & Expert Users
I am using the following command to email a tex file as an attachment-
cat mailtext.txt | elm -s "Subject" emailAddr
where content of mailtext.txt is -
"Body of email"
This will attach foo.txt with the email.
My problem is that the file foo.txt is ceated dynamically everytime with a... (5 Replies)
Discussion started by: hpuxlxboy
5 Replies
4. Shell Programming and Scripting
I'm trying to copy a string (myame@yahoo.com) from multiple files and save them to a new file.
This is what's I've gathered so far:
sed 's/string/g' file.txt > output.txt
Not sure how to run this on multiple files and extract just the email address found in each file.
Any help would be... (2 Replies)
Discussion started by: rdell
2 Replies
5. Shell Programming and Scripting
Hi All,
How do I search first string & second string and copy all content between them from one file to another file?
Please help me..
Thanks In Advance.
Regards,
Pankaj (12 Replies)
Discussion started by: pankajp
12 Replies
6. Shell Programming and Scripting
Hi! just want to seek help on this:
i have a file wherein i want to find a string and copy the string after that and paste that other string to a new file.
ex:
TOTAL 123456
find "TOTAL" and copy "123456"
and paste "123456" to a new file
NOTE: there are many "TOTAL" strings on that... (12 Replies)
Discussion started by: kingpeejay
12 Replies
7. Shell Programming and Scripting
I tried awk for this, but failed <or my code is not correct? I dont know>. Can anyone help me on this?
---------- Post updated at 08:34 PM ---------- Previous update was at 08:29 PM ----------
my working file looks like this:
<empty>
<empty>
<empty>
NAME :ABC AGE :15
GENDER... (6 Replies)
Discussion started by: kingpeejay
6 Replies
8. Shell Programming and Scripting
Hi guys
I've got two columns, PRODUCT and BRAND, the Brand column currently has the first word of each product, I've acheived this by using SED to copy the first word of the PRODUCT column, however you run into trouble when the brand has more than one word, i.e. 'Weight Watchers'.
Is there... (22 Replies)
Discussion started by: mrpugster
22 Replies
9. Shell Programming and Scripting
i have a file1 with many lines. i have a script that will let me input a string. for example, APPLE. what i need to do is to copy all lines from file1 where i can find APPLE or any string that i specify and paste in on file 2
thanks in advance! (4 Replies)
Discussion started by: engr.jay
4 Replies
10. Shell Programming and Scripting
I am new, really new to bash scripts.
I want to search an XML file for a certain string, say "1234567890"
Once found, I want to copy the entire contents from the previous instance of the string "Entity" to the next instance of "/Entity" to a txt file.
And then continue searching for the... (4 Replies)
Discussion started by: jrfiol
4 Replies
GREP(1) General Commands Manual GREP(1)
NAME
grep - search a file for a pattern
SYNOPSIS
grep [ option ... ] pattern [ file ... ]
DESCRIPTION
Grep searches the input files (standard input default) for lines (with newlines excluded) that match the pattern, a regular expression as
defined in regexp(6). 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.
-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.
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 '...'.
SOURCE
/sys/src/cmd/grep.c
SEE ALSO
ed(1), awk(1), sed(1), sam(1), regexp(6)
DIAGNOSTICS
Exit status is null if any lines are selected, or non-null when no lines are selected or an error occurs.
GREP(1)