Sponsored Content
Top Forums Shell Programming and Scripting Strip leading and trailing spaces only in a shell variable with embedded spaces Post 65600 by Perderabo on Monday 7th of March 2005 12:20:52 PM
Old 03-07-2005
We can extend vgersh99's code to handle this by adding a few double quotes...

Code:
#!/bin/ksh

a=' abc            de f    '

b=$(echo "${a}" | sed -e 's/^ *//g;s/ *$//g')

echo "a->[${a}] b->[${b}]"

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Leading and Trailing Spaces

Hi, how to i remove leading and trailing spaces from a line? the spaces can be behind or in front of any field or line example of a line in the input data: Amy Reds , 100 , /bin/sh how to i get it to be: Amy Read,100,/bin/sh i saw something on this on the Man pages for AWK... (7 Replies)
Discussion started by: sleepster
7 Replies

2. UNIX for Dummies Questions & Answers

Removing leading and trailing spaces of data between the tags in xml.

I am having xml document as below. <transactionid> 00 </transactionid> <tracknumber> 0 </tracknumber> <key> N/A </key> But the data contains leading and trailing spaces between the tags. Please let me know how can i remove these leading and trailing spaces between the tags.... (2 Replies)
Discussion started by: jhmr7
2 Replies

3. Shell Programming and Scripting

Leading spaces of variable removed

#!/bin/bash TESTVAR=" 5spaces" echo $TESTVAR hostame:~# ./test.sh 5spaces The leading spaces from my variable are removed when the content is echo'd. I am trying to make some tabular data. `echo -e` also fails. Any suggestions? (2 Replies)
Discussion started by: grumm3t
2 Replies

4. Shell Programming and Scripting

remove trailing and leading spaces using tr command

Dear All, can you please advice how do i remove trailing and leading spaces from a pipe-delimited file using "tr" command the below cmd, i tried removed all spaces tr -d ' '<s1.txt>s2.txt1 Many thx Suresh (5 Replies)
Discussion started by: sureshg_sampat
5 Replies

5. Shell Programming and Scripting

Removing leading and trailing spaces only in PERL

Hi All, I have a file with the following contents with multiple lines 172445957| 000005911|8| 400 Peninsula Ave.#1551 | And,K |935172445957|000005911 607573888 |000098536 | 2|Ane, B |J |Ane |1868 |19861206|20090106|20071001 I want to trim the "leading and trailing spaces only" from... (2 Replies)
Discussion started by: kumar04
2 Replies

6. Shell Programming and Scripting

Removing leading spaces from the variable value.

Hi All, I am trying to replace the value of a xml tag with a new one. But, the existing value in the xml contain leading spaces and I tried to remove that with different sed commands but all in vain. For replacing the value I wrote the command in BOLD letters below: bash-3.00$... (3 Replies)
Discussion started by: khedu
3 Replies

7. Shell Programming and Scripting

How to remove trailing spaces from a variable?

I am getting a value from a csv file using CUT command, however the command extracting the records with trailing spaces. I am using the result into a sql session to fetch data, because of the trailing spaces the sql session is unable to fetch any data. Please let me know, how to remove this... (2 Replies)
Discussion started by: mady135
2 Replies

8. UNIX for Dummies Questions & Answers

Want to add trailing spaces to the variable

I want to keep string/varible length to 10 even its actual length is less than 10(may be no value). so, i want to add trailing spaces to my string. :wall: "typeset -L10 myvarible" is not working, its saying invalid typset -L option. Can you please advise. (4 Replies)
Discussion started by: djaks111
4 Replies

9. Shell Programming and Scripting

Remove leading and trailing spaces from a file

Hi, I am trying to remove leading and trailing spaces from a file using awk but somehow I have not been able to do it. Here is the data that I want to trim. 07/12/2017 15:55:00 |entinfdev |AD ping Time ms | .474| 1.41| .581|green |flat... (9 Replies)
Discussion started by: svajhala
9 Replies

10. Shell Programming and Scripting

How to remove leading and trailing spaces for variable in shell script?

Hi I have variable named tablename. The value to tablename variable has leading and trailing white spaces. How to remove the leading and training white spaces and write the value of the tablename without space to a file using shell script. ( for e.g. tablename= yyy ) INPUT ... (10 Replies)
Discussion started by: pottic
10 Replies
COLORS(3)						   libbash colors Library Manual						 COLORS(3)

NAME
colors -- libbash library for setting tty colors. SYNOPSIS
colorSet <color> colorReset colorPrint [<indent>] <color> <text> colorPrintN [<indent>] <color> <text> DESCRIPTION
General colors is a collection of functions that make it very easy to put colored text on tty. The function list: colorSet Sets the color of the prints to the tty to COLOR colorReset Resets current tty color back to normal colorPrint Prints TEXT in the color COLOR indented by INDENT (without adding a newline) colorPrintN The same as colorPrint, but trailing newline is added Detailed interface description follows. Available colors: Green Red Yellow White The color parameter is non-case-sensitive (i.e. RED, red, ReD, and all the other forms are valid and are the same as Red). FUNCTIONS DESCRIPTIONS
colorSet <color> Sets the current printing color to color. colorReset Resets current tty color back to normal. colorPrint [<indent>] <color> Prints text using the color color indented by indent (without adding a newline). Parameters: <indent> The column to move to before start printing. This parameter is optional. If ommitted - start output from current cursor position. <color> The color to use. <color> The text to print. colorPrintN [<indent>] <color> The same as colorPrint, except a trailing newline is added. EXAMPLES
Printing a green 'Hello World' with a newline: Using colorSet: $ colorSet green $ echo 'Hello World' $ colorReset Using colorPrint: $ colorPrint 'Hello World'; echo Using colorPrintN: $ colorPrintN 'Hello World' AUTHORS
Hai Zaar <haizaar@haizaar.com> Gil Ran <gil@ran4.net> SEE ALSO
ldbash(1), libbash(1) Linux Epoch Linux
All times are GMT -4. The time now is 11:45 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy