Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Problem with writing into a file through shell script
Top Forums Shell Programming and Scripting Problem with writing into a file through shell script Post 302524857 by mirni on Tuesday 24th of May 2011 11:28:51 PM
Old 05-25-2011
Please use code tags.

What's your reason to do this
Code:
line1=`cat /proc/interrupts | grep eth3-TxRx-0`
nohup echo $line1 >> /home/joydeep/results/interrupt/samesocket/data_cache_misses/"$outputfile0"&

instead of much simpler
Code:
grep eth3-TxRx-0  /proc/interrupts >> /home/joydeep/results/interrupt/samesocket/data_cache_misses/"$outputfile0"

?

I mean why the 'nohup' and sending it in background? You're just calling echo; it takes a split of a second....

Do you get the output (files created) when you invoke the interrupt script from command line?
 

10 More Discussions You Might Find Interesting

1. AIX

Difference between writing Unix Shell script and AIX Shell Scripts

Hi, Please give me the detailed Differences between writing Unix Shell script and AIX Shell Scripts. Thanks in advance..... (0 Replies)
Discussion started by: haroonec
0 Replies

2. UNIX for Dummies Questions & Answers

HELP! writing shell script with c++ file

how would i write a shell script to count number of one-line comments in a c++ file. please help with coding thank you. (1 Reply)
Discussion started by: deadleg
1 Replies

3. Shell Programming and Scripting

Shell script for a writing the directory structure to a file

Hi All, I am new user of shell scripting has come up with a problem. that I have a directory structure like : Home | |--------A | |----trunk | |-------A_0_1/ | | | |-------A_0_2/ | |--------B | ... (6 Replies)
Discussion started by: bhaskar_m
6 Replies

4. Shell Programming and Scripting

Script writing problem

Self professed idot looking for help LOL Hi all, I am new to Unix and I have to write a shell script that will check to see if a file exist and then create it if it does not. The file I need to search for is titled "A1. dat" and here is my feeble attempt at creating the script: #!/bin/bash... (2 Replies)
Discussion started by: Tinablue
2 Replies

5. Shell Programming and Scripting

Shell Script to remove spaces while writing to the file

Hello Folks, I want to get the results from a SQL query which needs to be exported to a .txt file. My Script is something like #!/bin/ksh db2 connect to DATABASE user user_name using pwd; touch test.txt isResult=0; isResult= `db2 -x select 'ABC',COL_B from TABLE_A WHERE COL_B=CONDITION`... (6 Replies)
Discussion started by: dinesh1985
6 Replies

6. Shell Programming and Scripting

Help with writing shell script file

I am trying to prompt the user using tput command to read the information ( 5 last names, first names and grades) from the keyboard. Save the data in a file called student.txt. Sort the file by last name and display it on the screen My pseudocode is as follow: Pseudocode: Initialize... (1 Reply)
Discussion started by: jestaton
1 Replies

7. Shell Programming and Scripting

newbie: writing ksh shell problem

my default profile is using ksh, I tried to write a simple scripts and I had issues, below is my scripts: $ more if_num.ksh USAGE="usage: if_num.ksh" print -n "Enter two numbers: " read x y if ((x=y)) then print "You entered the same number twice." when I tried to executed the... (6 Replies)
Discussion started by: matthew00
6 Replies

8. Shell Programming and Scripting

problem writing a simple c shell script

#!/bin/csh echo hello world this is what i got in a text file called ss1. i type "chmod 755 ss1.txt" to make it executable. then when i type ss1 or ss1.txt it says "ss1 command not found" what am i doing wrong? (19 Replies)
Discussion started by: pantelis
19 Replies

9. Shell Programming and Scripting

Sqlplus inside shell script writing to tmp file

Hi, facing an issue while calling sqlplus inside shell script. It for some reason goes to tmp file to write something and i get error as permission denied as i dont have access there. ANy idea why sqlplus writes in /tmp and how to change or stop this ? (2 Replies)
Discussion started by: rushikeshs
2 Replies

10. Programming

Writing a UNIX shell script to call a C function and redirecting data to a .txt file

Hi, I am complete new to C programming and shell scripting. I just wrote a simple C code to calculate integral using trapezoid rule. I am prompting user to pass me No. of equally spaced points , N , upper and lower limit. My code looks as follows so far: #include<stdio.h> #include<string.h>... (2 Replies)
Discussion started by: bjhjh
2 Replies

LEARN ABOUT ULTRIX

zgrep

ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep	options  will  cause  zgrep  to  terminate  with  an  error  code:
       (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*).  All other options specified are passed directly to grep.  If no file is specified,  then  the
       standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed if necessary and fed to grep.

       If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

       2 - An option that is not supported was specified.

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

																	  ZGREP(1)
All times are GMT -4. The time now is 08:30 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy