Sponsored Content
Top Forums Shell Programming and Scripting Resolving a parameter which is passed as parameter Post 302860879 by CarloM on Monday 7th of October 2013 11:56:27 AM
Old 10-07-2013
As you've noted, you need to quote the string to supply a pathname containing spaces. The same still applies when you're using a variable.

Code:
cat "$(eval echo \"$line\")"

Technically, the extra quotes around $line aren't necessary for your example case but if you want to preserve other whitespace then you will need them (without them echo will receive 2 arguments, which it will print with a space separator),
This User Gave Thanks to CarloM For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

how do I make dynamic parameter names? Or get the value of a parameter evaluated twi

Say I write something like the following: var1=1 var2=2 for int in 1 2 do echo "\$var$int" done I want the output to be: 1 2 Instead I get something like: $var1 $var2 (2 Replies)
Discussion started by: Awanka
2 Replies

2. Shell Programming and Scripting

manipulate a passed in parameter

I am passing a file name as a parameter to shell script the parameter is getfile.txt.gpg how do i process this parameter to get name like getfile.txt only and eleminate the .gpg text?? Thanks in advance (2 Replies)
Discussion started by: rudoraj
2 Replies

3. UNIX for Dummies Questions & Answers

checking parameter values passed to script

Hi, I will pass 3 parameters for a script.I have to check the file name and create a new file name with time stamp. the parameters which i'm passing are /dir/stg/filename.txt /dir/path/head.txt /dir/path/tail.txt Now i have to check filename like : if it is a.txt i have to create... (2 Replies)
Discussion started by: ammu
2 Replies

4. Shell Programming and Scripting

how to find the path of a file when it is passed as ....filename(parameter) to script

hi unix guru's..................:confused: question is posted in the #3 permalink shown below. (3 Replies)
Discussion started by: yahoo!
3 Replies

5. Shell Programming and Scripting

Detecting Doublequotes(") When passed as parameter to shell script

Hi, I am executing a shell script which takes a string as a parameter. The scipt should validate the string and create the directoy with the name of specfied string. The following is the specified command and its parameter. test.sh "abc abc" The shell script is not able to identify... (4 Replies)
Discussion started by: raghu.amilineni
4 Replies

6. Shell Programming and Scripting

How can i passed a parameter to a file?

i got a file called Pass1, and then i need to passed a number to my script with the '-p pass_mark' option. Example type Pass1 -p 18 to pass 18 to my script for comparing things, so how can i do it? (7 Replies)
Discussion started by: mingming88
7 Replies

7. UNIX for Dummies Questions & Answers

checking if parameter passed is a number

I have written a function that fills an array and another function where if a parameter is supplied it will jump to that part of the array and cat it to the screen. I need to put in some checks to make sure the parameter supplied is firstly a number and then not a number great than the length of... (2 Replies)
Discussion started by: magnia
2 Replies

8. Shell Programming and Scripting

Incrementing the date depending on the Counter (parameter) passed to the script

Hello Everyone, I have been trying to complete a shell script where, I need to increment the date depending on the file (depending on the date) availability on the remote server. i.e. Basically, I will be passing a counter (like parameter 1 or 2 or 3 or 4). First I will check for the... (1 Reply)
Discussion started by: filter
1 Replies

9. Shell Programming and Scripting

Command that takes one parameter and then searches for the passed in parameter

Hi I am looking for a unix command or a small shell script which can takes one parameter and then searches for the passed in the parameter in any or all files under say /home/dev/ Can anyone please help me on this? (3 Replies)
Discussion started by: pankaj80
3 Replies

10. Shell Programming and Scripting

Passing parameter to script, and split the parameter

i am passing input parameter 'one_two' to the script , the script output should display the result as below one_1two one_2two one_3two if then echo " Usage : <$0> <DATABASE> " exit 0 else for DB in 1 2 3 do DBname=`$DATABASE | awk -F "_" '{print $1_${DB}_$2}` done fi (5 Replies)
Discussion started by: only4satish
5 Replies
echo(1B)					     SunOS/BSD Compatibility Package Commands						  echo(1B)

NAME
echo - echo arguments to standard output SYNOPSIS
/usr/ucb/echo [-n] [argument] DESCRIPTION
echo writes its arguments, separated by BLANKs and terminated by a NEWLINE, to the standard output. echo is useful for producing diagnostics in command files and for sending known data into a pipe, and for displaying the contents of envi- ronment variables. For example, you can use echo to determine how many subdirectories below the root directory (/) is your current directory, as follows: o echo your current-working-directory's full pathname o pipe the output through tr to translate the path's embedded slash-characters into space-characters o pipe that output through wc -w for a count of the names in your path. example% /usr/bin/echo "echo $PWD | tr '/' ' ' | wc -w" See tr(1) and wc(1) for their functionality. The shells csh(1), ksh(1), and sh(1), each have an echo built-in command, which, by default, will have precedence, and will be invoked if the user calls echo without a full pathname. /usr/ucb/echo and csh's echo() have an -n option, but do not understand back-slashed escape characters. sh's echo(), ksh's echo(), and /usr/bin/echo, on the other hand, understand the black-slashed escape characters, and ksh's echo() also understands a as the audible bell character; however, these commands do not have an -n option. OPTIONS
-n Do not add the NEWLINE to the output. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWscpu | +-----------------------------+-----------------------------+ SEE ALSO
csh(1), echo(1), ksh(1), sh(1), tr(1), wc(1), attributes(5) NOTES
The -n option is a transition aid for BSD applications, and may not be supported in future releases. SunOS 5.11 3 Aug 1994 echo(1B)
All times are GMT -4. The time now is 07:43 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy