10 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
Hi there,
I'm working with file more than 400K lines, 60 columns. Column count is going to be multiple of 12: 60, 12, 72 or so.
NF/12 gives me on how many iterations I've to do to check certain value.
For example: 7, 14th if only 24 columns in file.
7th, 14th and 21st if 36 columns in... (6 Replies)
Discussion started by: genome
6 Replies
2. Shell Programming and Scripting
I'm a BASH shell user (relatively new)
I need to get a variable calculated in a subshell, outside the subshell, when it completes. I can do it, by writing the variable into a file, and then reading the file again when outside the subshell. I've tried lots of things from exporting to environmental... (3 Replies)
Discussion started by: goreilly
3 Replies
3. Shell Programming and Scripting
Hi, guys,
The content of file is below (from <UNIX® Shells by Example Fourth Edition>):
My code is below:
gawk -F'' ' { OFS = "****"; $3 = "(904)"; $8 = $5 + $6 + $7; print } ' lab3.data
The result is below:
So, where is the $1? Why is the variable $8 located at the wired position? (3 Replies)
Discussion started by: franksunnn
3 Replies
4. Red Hat
Hi all,
Hereby wish to have your advise for below:
Main concept is
I intend to get current directory of my script file.
This script file will be copied to /etc/init.d.
A string in this copy will be replaced with current directory value.
Below is original script file:
... (6 Replies)
Discussion started by: cielle
6 Replies
5. UNIX for Dummies Questions & Answers
HI. I had an environment variable defined in my .bash_profile file and I deleted it. I opened a new terminal and looked inside .bash_profile and it's not there but when I type
printenv MYCONFIG
it reutrns what the value used to be in my .bash_profile still!! I did a grep for MYCONFIG and... (6 Replies)
Discussion started by: dissectcode
6 Replies
6. Shell Programming and Scripting
I want to replace a certain pattern with the variable already defined.
e.g.
set path_verilog = /home/priya/bin/verilogfile
my file contents are :
verilog new
verilog is defined here verilog_path_comes
I am using the below command
sed 's/verilog_path_comes/'$path_verilog'/g' <filename>... (2 Replies)
Discussion started by: nehashine
2 Replies
7. Shell Programming and Scripting
Hi,
I have a user defined variable _TIME1=xxx
I am using awk command for pattern matching.
cat $_LOCATION/catalina.txt | awk '/^`$_TIME1`:??:??/'
It not taking the value of $_TIME!
eg:I am using the command to get all the patter from 12:00:00 to 12:59:59
The user defined variable... (2 Replies)
Discussion started by: ahamed
2 Replies
8. Shell Programming and Scripting
Hi ,
I had a script in which there is a variable $LOG defined and I want to check where that variable is getting value from, is there a way I can check for that variable and it's value if it is defined in some other script function or script . I checked using command env and also export... (1 Reply)
Discussion started by: somu_june
1 Replies
9. Shell Programming and Scripting
In a line such as:
echo -n "How many days back would you like to check? "; read days
How can I ensure that the user has a.) entered a number between 1-30 (not 0 or 31+) and b.) has not just hit enter (ie set it to "") and if it's entered wrong, how do I start the if statement over?
I... (10 Replies)
Discussion started by: earnstaf
10 Replies
10. Linux
moved to correct thread (0 Replies)
Discussion started by: alien12
0 Replies