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Shell Programming and Scripting
Read multiple lines at a time from file
Post 302828905 by Corona688 on Wednesday 3rd of July 2013 12:55:33 PM
07-03-2013
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I am trying to create a script which will read 2 files and use the lines of file 1 for each line on file 2.
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Hello community,
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LEARN ABOUT DEBIAN
lappend
lappend(3tcl) Tcl Built-In Commands lappend(3tcl) __________________________________________________________________________________________________________________________________________________ NAME
lappend - Append list elements onto a variable SYNOPSIS
lappend varName ?value value value ...? _________________________________________________________________ DESCRIPTION
This command treats the variable given by varName as a list and appends each of the value arguments to that list as a separate element, with spaces between elements. If varName does not exist, it is created as a list with elements given by the value arguments. Lappend is similar to append except that the values are appended as list elements rather than raw text. This command provides a relatively efficient way to build up large lists. For example, "lappend a $b" is much more efficient than "set a [concat $a [list $b]]" when $a is long. EXAMPLE
Using lappend to build up a list of numbers. % set var 1 1 % lappend var 2 1 2 % lappend var 3 4 5 1 2 3 4 5 SEE ALSO
list(3tcl), lindex(3tcl), linsert(3tcl), llength(3tcl), lset(3tcl), lsort(3tcl), lrange(3tcl) KEYWORDS
append, element, list, variable Tcl lappend(3tcl)