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Top Forums Shell Programming and Scripting Search for an undetermined number of spaces Post 303013616 by Scrutinizer on Saturday 24th of February 2018 11:05:37 AM
Old 02-24-2018
Quote:
Originally Posted by bedtime
I was just about to post that I was not looking for the above code. I have used this, and it collapses return keys and other useful characters.

I only want to reduce spaces beyond a single space to a single space using awk.

Sorry for the runaround. Smilie
No worries Smilie . Another option may be to just adjust the field separator:
Code:
awk -F' *' '{$1=$1}1'

or perhaps a tiny tiny bit more efficient:
Code:
awk -F'  +' '{$1=$1}1' file

But what if you have a space and a TAB together? Do you leave the space or delete it?

Last edited by Scrutinizer; 02-24-2018 at 12:11 PM..
 

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concat(1T)						       Tcl Built-In Commands							concat(1T)

__________________________________________________________________________________________________________________________________________________

NAME
concat - Join lists together SYNOPSIS
concat ?arg arg ...? _________________________________________________________________ DESCRIPTION
This command joins each of its arguments together with spaces after trimming leading and trailing white-space from each of them. If all the arguments are lists, this has the same effect as concatenating them into a single list. It permits any number of arguments; if no args are supplied, the result is an empty string. EXAMPLES
Although concat will concatenate lists (so the command: concat a b {c d e} {f {g h}} will return "a b c d e f {g h}" as its result), it will also concatenate things that are not lists, and hence the command: concat " a b {c " d " e} f" will return "a b {c d e} f" as its result. Note that the concatenation does not remove spaces from the middle of its arguments, so the command: concat "a b c" { d e f } will return "a b c d e f" (i.e. with three spaces between the a, the b and the c). SEE ALSO
append(1T), eval(1T) KEYWORDS
concatenate, join, lists ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWTcl | +--------------------+-----------------+ |Interface Stability | Uncommitted | +--------------------+-----------------+ NOTES
Source for Tcl is available on http://opensolaris.org. Tcl 8.3 concat(1T)
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