Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

bash padding

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting bash padding
# 1  
Old 07-25-2011
bash padding
Hi all

Is there a way to pad the output of a bash script
see that code below
Code:
for i in `sed -n '/Start Printer/,/End Printer/p' /u/ab/scripts/hosts.conf | awk '!/^#/ {print $2}' | egrep -v 'broke|primera' `; do 


    pages=`snmpget -Ov -v1 -c public $i sysLocation.0 | awk '{print $2}'`
    echo $i $pages
 
done

so it will output

Code:
prawn 211sa

i want to be able to pad it so it is alligned nicely

i.e


Code:
prawn       211sa
octopus    203ms

many thanks

Adam
# 2  
Old 07-25-2011
Use printf instead of echo:
Code:
printf "%-10s %s\n" "$i" "$pages"

# 3  
Old 07-25-2011
thanks worked like a treat, lastly ( casue i am coming to the end of my programming knowledge) if i want to put some error checking in, i get one result

Code:
Timeout: No Response <hostname>

is there a way i can just get it to spit out a message

Code:
<hostname>    hostdown

or something similar,

btw i have made $i the hosthame

thanks
# 4  
Old 07-25-2011
Hi, try (quick and dirty):

Code:
set -o pipefail
if pages=`snmpget -Ov -v1 -c public "$i" sysLocation.0 2>/dev/null | awk '{print $2}'`
then  
  printf "%-10s %s\n" "$i" "$pages"
else
  printf "%-10s %s\n" "$i" hostdown
fi
set +o pipefail

Last edited by Scrutinizer; 07-25-2011 at 02:17 PM..
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Sort, sed, and zero padding date column csv bash scripting

Hello people, I am having problem to sort, sed and zero padding of column in csv file. 7th column only. Input of csv file: 1,2,3,4,5,6,4/1/2010 12:00 AM,8 1,2,3,4,5,6,3/11/2010 9:39 AM,8 1,2,3,4,5,6,5/12/2011 3:43 PM,8 1,2,3,4,5,6,12/20/2009 7:23 PM,8 Output:... (5 Replies)
Discussion started by: sean1357
5 Replies

2. UNIX for Dummies Questions & Answers

Is there a way to add padding to a bash shell script?

I'm grepping several lines and I want all of them to display with the same padding, is there a command to add whitespace before a line? (1 Reply)
Discussion started by: jcnewton13
1 Replies

3. Shell Programming and Scripting

zero padding problem (bash)

Hi there, I need to loop some values, for i in $(seq $first $last) do does something here donefor $first and $last, i need it to be of fixed length 5. so if the input is 1, i need to add zeros in front such that it becomes 00001. It loops till 99999 for example, but the length has to be... (4 Replies)
Discussion started by: jremio
4 Replies

4. Shell Programming and Scripting

Padding with zeros.

Hi Friends, I would like to left pad with "0's" on first column say (width six) I have a large file with the format: FILE: 1: ALFRED 84378 NY 8385: JAMES 88385 FL 323: SMITH 00850 TX My output needs to be like: 000001: ALFRED 84378 NY 008385: JAMES 88385 FL 000323: SMITH... (10 Replies)
Discussion started by: sbasetty
10 Replies

5. UNIX for Dummies Questions & Answers

Zero padding dates

I have a file with records containing dates like: SMPBR|DUP-DO NOT USE|NEW YORK||16105|BA5270715|2007-6-6|MWERNER|109||||JOHN||SMITH|MD|72211118||||||74559|21 WILMINGTON RD||D|2003-11-6|SL# MD CONTACT-LIZ RICHARDS|||0|Y|N||1411458| How can I get the date fields in each of my records to be... (1 Reply)
Discussion started by: ChicagoBlues
1 Replies

6. Shell Programming and Scripting

bash typeset padding with zeros

Hi everybody, I have a question about typesetting. I originally wrote a script for use with ksh and now I am on a system that I cannot modify, and it only has bash. In the original script I just did typeset -RZ4 variable and it would add the leading zeros. In bash, it doesn't work. I've... (2 Replies)
Discussion started by: jwheeler
2 Replies

7. Shell Programming and Scripting

Padding in Unix

I have a file with different character counts on each line how do i make it with unique character counts. example: 1st line : ABCD 011 XYZ 0000 YYYY BBB TEADINGDA 2nd line: ABCD 011 xys 0010 YYYY BBB TEAD 3rd line : ABCD 022 YXU 000 UUU BBB TE 1st line is 43... (3 Replies)
Discussion started by: rudoraj
3 Replies

8. Programming

Byte Padding

Hi, Can someone explain what is byte padding? For ex: struct emp{ char s; int b; char s1; int b1; long b3; char s3; } What will be the size of this structure? Thanks (6 Replies)
Discussion started by: naan
6 Replies

9. UNIX for Dummies Questions & Answers

Padding

Hi Can anyone tell me how to pad zeroes on the left side to a numeric string in unix shell scripting Your answer is very much appreciated Thanks Vijay (2 Replies)
Discussion started by: vijaygopalsk
2 Replies

10. Programming

Zero Padding to a string

I am writing a C program which a part of it needs to padding zero in front of a string. The program will get a sting from an ASCII file which the maxium length of this string is 5 char long. The string can sometimes less the 5 char long. In order to make it with the same length '0's are being... (3 Replies)
Discussion started by: Wing m. Cheng
3 Replies
Login or Register to Ask a Question