Top Forums UNIX for Beginners Questions & Answers "Mv" command does not work in loop, but works manually Post 303040730 by RudiC on Tuesday 5th of November 2019 04:43:19 PM
The file names and the sequence number are not necessarily synchronised; e.g. a single file CAT_Run02 will yield an nrun value of 1 and so the seq will never produce a match. A different approach should be chosen.

Howsoever, this would not explain the error message you saw. Nor can I. Pls run the script again with the -x (xtrace) option set, and post the result.
Test Your Knowledge in Computers #921
Difficulty: Medium
Unix Epoch Time cannot be extended backwards from the epoch date.
True or False?

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


foreach - Iterate over all elements in one or more lists SYNOPSIS
foreach varname list body foreach varlist1 list1 ?varlist2 list2 ...? body _________________________________________________________________ DESCRIPTION
The foreach command implements a loop where the loop variable(s) take on values from one or more lists. In the simplest case there is one loop variable, varname, and one list, list, that is a list of values to assign to varname. The body argument is a Tcl script. For each element of list (in order from first to last), foreach assigns the contents of the element to varname as if the lindex command had been used to extract the element, then calls the Tcl interpreter to execute body. In the general case there can be more than one value list (e.g., list1 and list2), and each value list can be associated with a list of loop variables (e.g., varlist1 and varlist2). During each iteration of the loop the variables of each varlist are assigned consecutive values from the corresponding list. Values in each list are used in order from first to last, and each value is used exactly once. The total number of loop iterations is large enough to use up all the values from all the value lists. If a value list does not contain enough elements for each of its loop variables in each iteration, empty values are used for the missing elements. The break and continue statements may be invoked inside body, with the same effect as in the for command. Foreach returns an empty string. EXAMPLES
This loop prints every value in a list together with the square and cube of the value: set values {1 3 5 7 2 4 6 8} ;# Odd numbers first, for fun! puts "Value Square Cube" ;# Neat-looking header foreach x $values { ;# Now loop and print... puts " $x [expr {$x**2}] [expr {$x**3}]" } The following loop uses i and j as loop variables to iterate over pairs of elements of a single list. set x {} foreach {i j} {a b c d e f} { lappend x $j $i } # The value of x is "b a d c f e" # There are 3 iterations of the loop. The next loop uses i and j to iterate over two lists in parallel. set x {} foreach i {a b c} j {d e f g} { lappend x $i $j } # The value of x is "a d b e c f {} g" # There are 4 iterations of the loop. The two forms are combined in the following example. set x {} foreach i {a b c} {j k} {d e f g} { lappend x $i $j $k } # The value of x is "a d e b f g c {} {}" # There are 3 iterations of the loop. SEE ALSO
for(3tcl), while(3tcl), break(3tcl), continue(3tcl) KEYWORDS
foreach, iteration, list, looping Tcl foreach(3tcl)

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