Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: How to pass cat file in awk statement?
Top Forums UNIX for Dummies Questions & Answers How to pass cat file in awk statement? Post 302941427 by stew on Thursday 16th of April 2015 02:37:02 AM
Old 04-16-2015
How to pass cat file in awk statement?
Hi,

I am working on kernel parameters, want to check values under /proc/sys/kernel

below I tried for kernel.sem

Code:
 
SEMMNS:    4096              cat /proc/sys/kernel/sem | awk '{print $2}'
 
awk '{ if ($2 < 33000) print }' /proc/sys/kernel/sem |awk '{print $2}'
32000
The above awk worked.

I am also trying for

Code:
 
SHMMAX:     2145745cat /proc/sys/kernel/shmmax
I am trying below awk, but it is not working

Code:
 
awk '{if ($(cat /proc/sys/kernel/shmmax) > 200) print}' /proc/sys/kernel/shmmax
awk: (FILENAME=/proc/sys/kernel/shmmax FNR=1) fatal: division by zero attempted


 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

I can't seem to pass variables properly into a nawk statement

Ok, So up front I'm going to say that I'm a very elementary scripter, and I tend to use tools I don't fully understand, but I shotgun at something until I can get it to work...that said, I can't for the life of me understand why I can't get this to go down the way I want it to. The goal: -to... (6 Replies)
Discussion started by: DeCoTwc
6 Replies

2. Shell Programming and Scripting

How to pass parameters to an awk file?

I have an awk file where I need to pass a filename and a value as a parameter from a sh script. I need to know how to pass those values in the sh script and how to use the same in the awk file. Thanks in advance!!! Geetha (3 Replies)
Discussion started by: iamgeethuj
3 Replies

3. Shell Programming and Scripting

want to pass sentence with SED and CAT

I have to pass a sentence in a file, the specs are as: cat run | sed 's/SRT/'$8'/g' | sed 's/plength/68/g' | sed 's/stcol/'$5'/g' | sed 's/encol/'$6'/g' | sed 's/brdtype/'$1'/g' | sed 's/brdtxt/'$3'/g' | sed 's/demotxt/Total '$2'/g' | sed 's/bantxt/ban_'$7'/g' | sed 's/validcodes/'$4'/g' > runx... (1 Reply)
Discussion started by: patilrakesh1984
1 Replies

4. Shell Programming and Scripting

how to pass a variable to an update sql statement inside a loop

hi all, i am experiencing an error which i think an incorrect syntax for the where clause passing a variable was given. under is my code. sqlplus -s ${USERNAME}/${PASSWORD}@${SID} << END1 >> $LOGFILE whenever sqlerror exit set serveroutput on size 1000000 declare l_rc ... (0 Replies)
Discussion started by: ryukishin_17
0 Replies

5. Shell Programming and Scripting

Pass a DDL statement to a KSH script

I need to pass a DDL statement into a ksh script & parse the statement. What is the best way to pass a DDL statement into a KSH script. ---------- Post updated at 09:28 AM ---------- Previous update was at 07:35 AM ---------- if the name of the script is test.ksh test.ksh "ALTER TABLE... (12 Replies)
Discussion started by: gayathree
12 Replies

6. Shell Programming and Scripting

How to pass tablenames from a file to shell script to execute create statement in DB2

Hi, I am new to Shell Scripting, and I need to create nicknames for 600 tables in db2. I have the file names in a text file and i have to pass these table names to a shell script create nicknames in db2. Can some one please help me in this regard. (1 Reply)
Discussion started by: kamalanaatha
1 Replies

7. Shell Programming and Scripting

Pass values to case statement in a function korn shell

I'm in the process of writng a function that consists of a case statement is there a way of calling the function and passing a value to it? ie function1 () { case opt1 do ..... opt2 do..... esac } function opt1 I'm aware the syntax is not correct, but you get the general idea. (1 Reply)
Discussion started by: squrcles
1 Replies

8. Shell Programming and Scripting

Convert Update statement into Insert statement in UNIX using awk, sed....

Hi folks, I have a scenario to convert the update statements into insert statements using shell script (awk, sed...) or in database using regex. I have a bunch of update statements with all columns in a file which I need to convert into insert statements. UPDATE TABLE_A SET COL1=1 WHERE... (0 Replies)
Discussion started by: dev123
0 Replies

9. Shell Programming and Scripting

Cat a script, pipe it, then pass arguments to it?

suppose i have a perl script that is normally run this way: ./checkdisk.pl -H hostname -w 40 -c 80 but, for whatever reason, i cannot run the script directly as it should. But i can cat it through pipe. How can i pass the arguments "-H hostname -w 40 -c 80"? so this is what i'm doing,... (6 Replies)
Discussion started by: SkySmart
6 Replies

10. Shell Programming and Scripting

Need to add prefix using sed or awk from cat the file

I need the use sed or AWK using cat the file Node1 TDEV RW 1035788 TDEV RW 1035788 Server1 TDEV RW 69053 Server2 TDEV RW 69053 TDEV RW 103579 Server3 TDEV RW 69053 server4 RDF1+TDEV RW 69053 RDF1+TDEV RW 517894 RDF1+TDEV RW 621473 server6 TDEV RW 34526 TDEV RW 34526 (22 Replies)
Discussion started by: ranjancom2000
22 Replies

LEARN ABOUT DEBIAN

rackdiag

NWDIAG(1)						      General Commands Manual							 NWDIAG(1)

NAME

       rackdiag - generate rack-structure-diagram image file from spec-text file.

SYNOPSIS

       rackdiag [options] files

DESCRIPTION

       This manual page documents briefly the rackdiag commands.

       rackdiag is generate sequence-diagram image file from spec-text file.

OPTIONS

       These  programs	follow	the  usual  GNU  command  line	syntax, with long options starting with two dashes (`-').  A summary of options is
       included below.	For a complete description, see the Info files.

       -h, --help
	      show this help message and exit.

       --version
	      show program's version number and exit.

       -a, --antialias
	      Pass diagram image to anti-alias filter.

       -c FILE, --config=FILE
	      read configurations from FILE.

       -o FILE
	      write diagram to FILE.

       -f FONT, --font=FONT
	      use FONT to draw diagram.

       -T TYPE
	      Output diagram as TYPE format.

SEE ALSO

       The programs are documented fully by
       http://blockdiag.com/en/nwdiag/

AUTHOR

       rackdiag was written by Takeshi Komiya <i.tkomiya@gmail.com>

       This manual page was written by Kouhei Maeda <mkouhei@palmtb.net>, for the Debian project (and may be used by others).

								   June 11, 2011							 NWDIAG(1)
All times are GMT -4. The time now is 08:22 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy