1. Shell Programming and Scripting

Hey all. Thanks in advance for any help you can give, hopefully this is an easy one. I want to create a loop to run a simple performance monitor like vmstat and record it to a file, but have very limited scripting skills (obviously). Starting with this... date >> /var/log/perfmon.log vmstat... (2 Replies)

2. Shell Programming and Scripting

I'm just trying to make a script that runs in command line to echo each line in a text file. Everything i found on google is telling me to do it like this but when I run it it just echos removethese.txt and thats it. Anyone know what im doing wrong? for i in removethese.txt; do echo $i; done ... (4 Replies)

3. Shell Programming and Scripting

Hi, I want to do a simple loop where I have one column of text in a file and I want the loop to read each line of the file and do a simple command. The text file will be something like this: hostname1 hostname2 hostname3 hostname4 I am using Bash and have already come up with this to... (1 Reply)

4. Shell Programming and Scripting

I am trying to create a simple ksh loop script. What I've pasted below is not working. Any help is appreciated. typeset -i count typeset -i tcount count=0 tcount=0 while $tcount >= 11 do print "\$count is $count" pwd ls -l sleep 30 $(( $tcount = $count + 1 )) ... (5 Replies)

5. UNIX for Dummies Questions & Answers

Hello forum memebers. can you correct the simple while program. #! /bin/ksh count=10 while do echo $count count='expr$count-1' done I think it will print 10 to 1 numbers but it running for indefinite times. (2 Replies)

6. Shell Programming and Scripting

Hi to everyone here, I'm a new user and relatively-new linuxer. I'm trying to write a script that checks if every file from a directory is present in a given list and if not, delete it. should be simple. But I think I've done half the work only: this is to create the reference list: for c... (2 Replies)

7. Shell Programming and Scripting

Hi! I am just starting to learn scripting. I am trying a simple script in bash and zsh I have two questions: First: Why zsh does not expand the var M? What I am doing wrong? localhost galanom # bash -c 'M="m1 m2 m3 m4 m5"; for x in $M; do echo "<$x>"; done' <m1> <m2> <m3> <m4> <m5>... (1 Reply)

8. Shell Programming and Scripting

Hello all! This is my first post and I'm very new to programming. I would like help creating a simple perl or bash script that I will be using in my work as a junior bioinformatician. Essentially, I would like to take a tab-delimted or .csv text with 3 columns and write them to a "3D" matrix: ... (16 Replies)

9. Shell Programming and Scripting

Hi, I am completely new to shell scripting. Basically I am wanting to create a simple while loop script to check if a network connection is available from 'netstat -a' and if its present then output a character to the serial port. I think i am nearly there.. but need some assistance.. this is... (9 Replies)

10. Shell Programming and Scripting

Hi all, Please guide me writing this script Follwing is the file which I have created, which contains the files to be copied. cat system1-dr.txt /etc/passwd /etc/shadow /etc/group /etc/vfstab /etc/profile /etc/default/init /etc/shells /etc/dfs/dfstab /etc/dfs/sharetab... (11 Replies)