Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: intent: df -kh | filter based on capacity (used space) column where % > 85
Top Forums Shell Programming and Scripting intent: df -kh | filter based on capacity (used space) column where % > 85 Post 302247850 by ProGrammar on Thursday 16th of October 2008 12:36:25 PM
Old 10-16-2008
Quote:
Originally Posted by danmero
Useless use of grep
Code:
df -kh | awk '/\/export/ && int($5) >= 85'


error:
Unmatched '


thanks for your input though. If you don't mind explaining, could you go into detail of the structure of this statement and why you did that.

I'm still trying to figure out the placement/requirement/caveats of (), [],{}, of which you're only using parentheses here. Hopefully you understand what I'm asking.

Am I right to assume the single quotes are to group the commands together or are they dual purpose in order to execute commands within the awk command as well as grouping the contents. kind of like sub-shell execution?

I'm familiar with using the forward-slash to initiate a search as within vi, less environments, then you're using the back-slash to escape the following forward-slash metacharacter which is a part of the search string...what's the last forward-slash's purpose in that statement? Also, the open-close parentheses around the integer and column id? If you have reference material, I'll gladly take as response.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

filter based on column value

I have a file with colon separated values.. the sample is attached below. No of fields in each record/line is dependent on the value of field53. What I need to do is to design a special filter based on specific requirement of some match of values in particular column or combination of columns. ... (2 Replies)
Discussion started by: rraajjiibb
2 Replies

2. Shell Programming and Scripting

filter out all the records which are having space in the 8th filed of my file

I have a file which is having fileds separtaed by delimiter. Ex: C;4498;qwa;cghy;;;;40;;222122 C;4498;sample;city;;;;34 2;;222123 C;4498;qwe;xcbv;;;;34-2;;222124 C;4498;jj;sffz;;;;41;;222120 C;4498;eert;qwq;;;;34 A;;222125 C;4498;jj;szxzzd;;;;34;;222127 out of these records I... (3 Replies)
Discussion started by: indusri
3 Replies

3. Shell Programming and Scripting

Filter the column and print the result based on condition

Hi all This is my output of the some SQL Query TABLESPACE_NAME FILE_NAME TOTALSPACE FREESPACE USEDSPACE Free ------------------------- ------------------------------------------------------- ---------- --------- ---------... (2 Replies)
Discussion started by: jhon
2 Replies

4. UNIX for Dummies Questions & Answers

Extracting rows from a space delimited text file based on the values of a column

I have a space delimited text file. I want to extract rows where the third column has 0 as a value and write those rows into a new space delimited text file. How do I go about doing that? Thanks! (2 Replies)
Discussion started by: evelibertine
2 Replies

5. Shell Programming and Scripting

awk filter based on column value (variable value)

Hi, I have a requirement to display/write the 3rd column from a file based on the value in the column 3. Ex: Data in the File (comma delimited) ID,Value,Description 1,A,Active 1,I,Inactive 2,S,Started 1,N,None 2,C,Completed 2,F,Failed I need to first get a list of all Unique IDs in... (7 Replies)
Discussion started by: kiranredz
7 Replies

6. Linux

Filter a .CSV file based on the 5th column values

I have a .CSV file with the below format: "column 1","column 2","column 3","column 4","column 5","column 6","column 7","column 8","column 9","column 10 "12310","42324564756","a simple string with a , comma","string with or, without commas","string 1","USD","12","70%","08/01/2013",""... (2 Replies)
Discussion started by: dhruuv369
2 Replies

7. Shell Programming and Scripting

Filter on one column and then perform conditional calculations on another column with a Linux script

Hi, I have a file (stats.txt) with columns like in the example below. Destination IP address, timestamp, TCP packet sequence number and packet length. destIP time seqNo packetLength 1.2.3.4 0.01 123 500 1.2.3.5 0.03 44 1500 1.3.2.5 0.08 44 1500 1.2.3.4 0.44... (12 Replies)
Discussion started by: Zooma
12 Replies

8. Shell Programming and Scripting

UNIX command -Filter rows in fixed width file based on column values

Hi All, I am trying to select the rows in a fixed width file based on values in the columns. I want to select only the rows if column position 3-4 has the value AB I am using cut command to get the column values. Is it possible to check if cut -c3-4 = AB is true then select only that... (2 Replies)
Discussion started by: ashok.k
2 Replies

9. Shell Programming and Scripting

Filter Row Based On Max Column Value After Group BY

Hello Team, Need your expertise on following: Here is the set of data: C1|4|C1SP1|A1|C1BP1|T1 C1|4|C1SP2|A1|C1BP2|T2 C2|3|C2SP1|A2|C2BP1|T2 C3|3|C3SP1|A3|C3BP1|T2 C2|2|C2SP2|A2|C2BP2|T1 I need to filter above date base on following two steps: 1. Group them by column 1 and 4 2.... (12 Replies)
Discussion started by: angshuman
12 Replies

10. Shell Programming and Scripting

Filter tab file based on column value

Hello I have a tab text file with many columns and have to filter rows ONLY if column 22 has the value of '0', '1', '2' or '3' (out of 0-5). If Column 22 has value '0','1', '2' or '3' (highlighted below), then remove anything less than 10 and greater 100 (based on column 5) AND remove anything... (1 Reply)
Discussion started by: nans
1 Replies

LEARN ABOUT DEBIAN

lessecho

LESSECHO(1)                                                   General Commands Manual                                                  LESSECHO(1)

NAME

       lessecho - expand metacharacters

SYNOPSIS

       lessecho [-ox] [-cx] [-pn] [-dn] [-mx] [-nn] [-ex] [-a] file ...

DESCRIPTION

       lessecho  is  a program that simply echos its arguments on standard output.  But any metacharacter in the output is preceded by an "escape"
       character, which by default is a backslash.

OPTIONS

       A summary of options is included below.

       -ex    Specifies "x", rather than backslash, to be the escape char for metachars.  If x is "-", no escape char is used and  arguments  con-
              taining metachars are surrounded by quotes instead.

       -ox    Specifies "x", rather than double-quote, to be the open quote character, which is used if the -e- option is specified.

       -cx    Specifies "x" to be the close quote character.

       -pn    Specifies "n" to be the open quote character, as an integer.

       -dn    Specifies "n" to be the close quote character, as an integer.

       -mx    Specifies "x" to be a metachar.  By default, no characters are considered metachars.

       -nn    Specifies "n" to be a metachar, as an integer.

       -fn    Specifies "n" to be the escape char for metachars, as an integer.

       -a     Specifies that all arguments are to be quoted.  The default is that only arguments containing metacharacters are quoted

SEE ALSO

       less(1)

AUTHOR

       This manual page was written by Thomas Schoepf <schoepf@debian.org>, for the Debian GNU/Linux system (but may be used by others).

       Send bug reports or comments to bug-less@gnu.org.

                                                             Version 487: 25 Oct 2016                                                  LESSECHO(1)
All times are GMT -4. The time now is 02:32 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy