Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Bash : Why are spaces important here ?
Top Forums Shell Programming and Scripting Bash : Why are spaces important here ? Post 302932299 by cfajohnson on Tuesday 20th of January 2015 01:13:18 PM
Old 01-20-2015
Quote:
Originally Posted by Corona688
Code:
$ whereis [

[: /usr/bin/[
$

It's usually a built-in as well, but the command must exist. The shell must treat it as a command.

Rather than whereis, use type; It tells you what the shell will actually use:

Code:
$ type [
[ is a shell builtin

With the -a option, it gives all the possible commands that could be executed:

Code:
$ type -a [
[ is a shell builtin
[ is /usr/bin/[

[ is also a synonym for test.
These 4 Users Gave Thanks to cfajohnson For This Post:
balajesuri John K migurus Scrutinizer
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

bash - add backslash in front of variables w/ spaces

Hello, Im writing a script that works by recursively going into directories with find. But I have some directories that have spaces in them.. so I need to parse the variables to add a backslash before the spaces. Im not exactly sure how how to do this in bash, and honestly I dont think I know... (3 Replies)
Discussion started by: trey85stang
3 Replies

2. Shell Programming and Scripting

bash replace spaces in list.txt with \

I'm trying to run a Linux virus scan on a list of files/folders I have ported to list.txt in a format: some file with spaces some other file but I need to feed my scanning script in the format: some\ file\ with\ spaces/ some\ other\ file/ so I would like to read in list.txt and output... (6 Replies)
Discussion started by: unclecameron
6 Replies

3. Shell Programming and Scripting

white spaces in bash autocompletion

Hello dear community! I've recently written a BASH function for auto completion of options. It works like following: if a user types a command and then an argument to this command which starts with "^-" and then presses TAB, then 'user_command --help (or -h)' is invoked and possible options are... (0 Replies)
Discussion started by: sidorenko
0 Replies

4. Shell Programming and Scripting

[BASH] Allow name with spaces (regex)

Hey all, I have a very simple regular expression that I use when I want to allow only letters with spaces. (I know this regex has a lot of shortcomings, but I'm still trying to learn them) isAlpha='^*$'However, when I bring this over to BASH it doesn't allow me to enter spaces. I use the... (3 Replies)
Discussion started by: whyte_rhyno
3 Replies

5. Shell Programming and Scripting

Bash - read white spaces

Hello! I have one problem with my bash script - I would like to be able to read white space characters from stdin (for example single " ") - can I acomplish that somehow? I need to read only one character at the time, so I use read -s -n 1 var but it doesn't work for whitespaces apparently. ... (3 Replies)
Discussion started by: xqwzts
3 Replies

6. Shell Programming and Scripting

Bash- Command run from script does not pass full parameters with spaces inside

There's a JavaScript file that I call from command line (there's a framework) like so: ./RunDiag.js param1:'string one here' param2:'string two here' I have a shell script where I invoke the above command. I can run it in a script as simple as this #!/bin/bash stuff="./RunDiag.js... (4 Replies)
Discussion started by: AcerAspirant
4 Replies

7. Shell Programming and Scripting

open application with spaces in name [bash][OSX]

Hi guys, I'm new here and new to shell scripting so don't be hard on me I'm trying to create a bash script to restart a process by name in Mac OSX. I have no problem killing the application, the problem comes when launching it again. I managed to store the path in a variable lets say ... (8 Replies)
Discussion started by: jonathanwiesel
8 Replies

8. Shell Programming and Scripting

Dealing with white spaces in bash scripts

I'm trying to search for all files in directory with particular GID then change the GID to match the UID of each file: #!/bin/sh for i in $(find /dump -gid 200 | sed 's/\ /\\\ /g' | sed 's/\&/\\\&/g'); do chgrp $(ls -ln ${i} | awk '{print $3}') ${i} done I'm using sed to deal with... (7 Replies)
Discussion started by: venmx
7 Replies

9. Shell Programming and Scripting

Populating a BASH array with a list of files including spaces-in-the-name

For the record, I already tried telling mgmt and the users to disallow spaces in filenames for this script, but it isn't happening for a number of ID10T-error-based reasons. I have simple list of 3 files in a directory that are named like this: bash-3.2$ ls -1 file* file1 file1 part2... (2 Replies)
Discussion started by: ckmehta
2 Replies

10. Shell Programming and Scripting

Bash script not parsing file with spaces in path

Hi everyone, I'm trying to write my first ever shell script, the OS is Raspbian. The code I have written must be executed whenever a certain database has been modified. The database resides on a Windows server to which I have a mount point, and I have no control over the Windows server at all so... (2 Replies)
Discussion started by: gjws
2 Replies

LEARN ABOUT OSF1

whereis

whereis(1)						      General Commands Manual							whereis(1)

NAME

       whereis - Locates files for programs

SYNOPSIS

       whereis [-bms] [-u] [-BMS directory... -f] program...

       The whereis command locates source, binary, and/or reference page files for the specified program program.

OPTIONS

       The -b, -m, and -s options can be used in combination to restrict the search.  Searches for an executable program.  Searches for the refer-
       ence page for a program.  Searches for the sources of a program.

       Use the -B, -M, and -S options to change or limit the places whereis searches.  Specifies the binary directories to search.  Specifies  the
       reference page directories to search.  Specifies the source directories to search.

       The  other options that can be used with whereis are as follows: Terminates the last directory list and signals the start of program names.
       Used with other options to indicate when there is no file for program in the default or specified directory or directories (source, binary,
       or reference page).

DESCRIPTION

       The  whereis  program  locates source, binary, and reference pages for the specified programs.  When looking for a match, the program names
       are stripped of leading pathname components and any trailing extensions of the form (for example, s.  resulting from the use of the  Source
       Code Control System see sccs(1), are also handled.

       The default directories searched by the whereis command are as follows: /etc /etc/nls /sbin /usr/bin /usr/lbin /usr/lbin/spell /usr/ccs/lib
       /usr/lib /usr/local /usr/hosts /usr/sbin

EXAMPLES

       To find files matching cat in the default source, binary, and reference directories, enter: whereis cat To search for reference	pages  for
       app13  in the directory /usr/local/man, enter: whereis -M /usr/local/man -f -f appl3 To find the programs in /usr/bin that do not have ref-
       erence pages in /usr/share/man/man1 with source files in /usr/src/cmd, enter: whereis -u -M /usr/share/man/man1 
	       -S /usr/src/cmd -f /usr/bin/* To find which files in the current directory either have no reference pages in the default  reference
       directories or have more than one, enter: whereis -m -u *

FILES

       Default binary directories.  Default binary directories.  Default reference directories.  Default source directories.

SEE ALSO

       Commands:  apropos(1), find(1), man(1), which(1), catman(8)

																	whereis(1)
All times are GMT -4. The time now is 07:26 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy