Sponsored Content
Top Forums UNIX for Beginners Questions & Answers What is the meaning the $ special character? Post 303006651 by Don Cragun on Monday 6th of November 2017 12:52:26 AM
Old 11-06-2017
The word interpolate is one of many English words with several meanings. I certainly agree that the mathematical meaning of interpolate ("insert an intermediate value or term into a series by estimating or calculating it from known surrounding values") makes no sense in this context. And this is how interpolate is most frequently used in this forum.

But, one of the other meanings of interpolate ("alter (a book or text) by insertion of new material") fits what parameter expansion, arithmetic expansion, command substitution, and special variable expansion (each of which are introduced by a leading $ in the shell command language) do if you consider shell commands to be text.
 

10 More Discussions You Might Find Interesting

1. Programming

special character ?

hey there im a bit stuck on executing commands that include the special character '?'. can someone recommend a way on how i would be able to execute it?? i thought the glob function could be useful (still mite be) but upon entering the command 'ls pars?' it listed all the files in the... (1 Reply)
Discussion started by: mile1982
1 Replies

2. UNIX for Dummies Questions & Answers

Special meaning characters in dir names

Hello, I've had a daemon go a little bit mental and create directories using somments from a config file. The end result is I've ended up with directories with names such as #, 5625), (5725 etc etc etc... However, when I try and delete them I get syntax errors, ( not expected, rmdir #... (2 Replies)
Discussion started by: JWilliams
2 Replies

3. Shell Programming and Scripting

special character

Hi, I am trying to unload file from a database. Which contains few lines with the character below. Rest of the data was unloaded appropriately. a) What does this below character means? b) How can i remove it, I already have sed '/^$/d' c) Will this effect the file by any means... (4 Replies)
Discussion started by: tostay2003
4 Replies

4. Shell Programming and Scripting

Special character in Diff

Hi I am comparing 2 files (using diff command) with numerical data in them. In the output file I want only the differences which are in file2 but not in file1. Although I am getting the diffences i am also getting special characters in the output file which i do not want. Can somebody help me For... (3 Replies)
Discussion started by: ashu_r2001
3 Replies

5. Shell Programming and Scripting

Special character \

Hi, In the shell script, i need to remove the special charater "\" with "\\". For example, i need to replace "D:\FXT\ABC.TXT" with "D:\\FXT\\ABC.TXT". However, when trying to do something like , i get the below error :- -->echo "D:\FXT\ABC.TXT" | sed -e 's#\#\\#g' sed: 0602-404 Function... (7 Replies)
Discussion started by: amit_arora
7 Replies

6. Shell Programming and Scripting

Deleteing one character after an special character

I have below line in a unix file, I want to delete one character after "Â". 20091020.Non-Agency CMO Daily Trade Recap Â~V Hybrids The result should be : 20091020.Non-Agency CMO Daily Trade Recap  Hybrids i dont want to use "~V" anywhere in the sed command or any other command, just remove... (1 Reply)
Discussion started by: mohsin.quazi
1 Replies

7. Solaris

What is the meaning of the character x in /etc/shadow file?

what is the meaning of the character x in /etc/shadow file which is lying in the encrypted password column.. i need this urgently (4 Replies)
Discussion started by: DJ2176
4 Replies

8. Shell Programming and Scripting

Vi special character

When editing a file, vi displays a special character as ^L. Can you tell me the escaped character to be used in awk? And can that escaped character be used in a regexp in both sed and awk? (7 Replies)
Discussion started by: dmesserly
7 Replies

9. Shell Programming and Scripting

Grep -F for special character

a='CASH$$A' /usr/xpg4/bin/grep -F "$a" *.txt It is not able to grep CASH$$A string as it contains special character $$. I also tried with /usr/xpg4/bin/grep -F '$a' *.txt but still not working. I have to assign CASH$$A to a variable and serach that variable..i dont want to search the... (8 Replies)
Discussion started by: millan
8 Replies

10. UNIX for Beginners Questions & Answers

Special character $$

Hi, on ksh What does the following do? grep -v "toolbox" $home_oracle/.profile >$home_oracle/.profile.$$ Thanks. Please use CODE tags as required by forum rules! (3 Replies)
Discussion started by: big123456
3 Replies
FcStrCopyFilename(3)													      FcStrCopyFilename(3)

NAME
FcStrCopyFilename - create a complete path from a filename SYNOPSIS
cc [ flag... ] file... -lfontconfig [ library... ] #include <fontconfig.h> FcChar8 * FcStrCopyFilename (const FcChar8 *s); DESCRIPTION
FcStrCopyFilename constructs an absolute pathname from s. It converts any leading '~' characters in to the value of the HOME environment variable, and any relative paths are converted to absolute paths using the current working directory. Sequences of '/' characters are con- verted to a single '/', and names containing the current directory '.' or parent directory '..' are correctly reconstructed. Returns NULL if '~' is the leading character and HOME is unset or disabled (see FcConfigEnableHome). VERSION
Fontconfig version 2.5.0 ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWfontconfig | +-----------------------------+-----------------------------+ |Interface Stability |Volatile | +-----------------------------+-----------------------------+ |MT-Level |See XInitThreads(3X11) | +-----------------------------+-----------------------------+ 13 November 2007 FcStrCopyFilename(3)
All times are GMT -4. The time now is 04:26 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy