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Top Forums Shell Programming and Scripting how can i compare te length of the string Post 302236622 by ghostdog74 on Tuesday 16th of September 2008 03:04:55 AM
Old 09-16-2008
true, then put quotes. anyway, its good practice too
Code:
if [ `printf "$var"|wc -c` -eq 4 ];then echo "4"; fi

this method should work on most shells, including bourne, csh
 

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llength(3tcl)						       Tcl Built-In Commands						     llength(3tcl)

__________________________________________________________________________________________________________________________________________________

NAME
llength - Count the number of elements in a list SYNOPSIS
llength list _________________________________________________________________ DESCRIPTION
Treats list as a list and returns a decimal string giving the number of elements in it. EXAMPLES
The result is the number of elements: % llength {a b c d e} 5 % llength {a b c} 3 % llength {} 0 Elements are not guaranteed to be exactly words in a dictionary sense of course, especially when quoting is used: % llength {a b {c d} e} 4 % llength {a b { } c d e} 6 An empty list is not necessarily an empty string: % set var { }; puts "[string length $var],[llength $var]" 1,0 SEE ALSO
list(3tcl), lappend(3tcl), lindex(3tcl), linsert(3tcl), lsearch(3tcl), lset(3tcl), lsort(3tcl), lrange(3tcl), lreplace(3tcl) KEYWORDS
element, list, length Tcl llength(3tcl)
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