10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi all
I wrote a foreach loop in c-shell:
foreach file (/.../fileNames*)
...
end
The problem is that if there aren't matching files in the directory I'm getting a
"foreach: No match". How can I rewrite it so the script will just skip the loop if there aren't any matching files?
... (4 Replies)
Discussion started by: Somename
4 Replies
2. UNIX for Dummies Questions & Answers
I am writing a shell script to uncompress files in a directory, then call a Perl script to search the files for given terms, store those terms in a different output file , and compress the output. I get a syntax error with my use of foreach. Below is my script.
#!/bin/csh -fxv
if (!... (2 Replies)
Discussion started by: dgrayman
2 Replies
3. Shell Programming and Scripting
Hi,
while executing the following c-shell script i got the error
"Couldn't find an 'end' to close a 'foreach' statement"
can't find the mistake ...plz help..
script ::
echo "enter build folder name in following sequence L-<REV>_<BUILD>"
set BUILD = $<
set file= `cat file1`
foreach i... (2 Replies)
Discussion started by: arup1980
2 Replies
4. Shell Programming and Scripting
Hi there,
I need some help with a shell script (I'm no sh script expert, but I hope this will explain how I want my script):dir = /home/user/files/
foreach(*.jpg file in $dir) {
tar -cf $file(-.jpg).tar $file;gzip $file(-.jpg).tar
}
mv -f $dir*tar.gz /home/user/pictures/
Thanks for any... (12 Replies)
Discussion started by: JKMlol
12 Replies
5. UNIX for Dummies Questions & Answers
Hi
I would like foreach to go through a range of numbers 1-365. This input is being read by a compiled fortran program in the same shell script. Let me try an example to clarify
#!/bin/sh
foreach i (1-365)
./data_make program <<EOF
'echo $i'
/data_'echo $i' #output file
I... (10 Replies)
Discussion started by: d_kowalske
10 Replies
6. Shell Programming and Scripting
Hi expert,
I have a large text file :-
number.txt
1
2
3
4
5
6
....
And i using csh foreach loop to read the file line by line.
foreach line(`cat number.txt)
set number = $line
<Calculation>
end (2 Replies)
Discussion started by: vincyoxy
2 Replies
7. Shell Programming and Scripting
I am scripting in tcsh and here is what I currently have:
foreach group (g1 g2 g3 g4)
set ppl = `cat $group.file.with.list.of.ppl.in.row.format`
set label = 1
@ label += 1
foreach ppls ($ppl)
echo $label >> file
end
end
... (0 Replies)
Discussion started by: bonesy
0 Replies
8. Shell Programming and Scripting
/data}/{bla/${INSTANCE} or /data}/{bla/$INSTANCE
the idea is to match a env varialbe name, so it could be between ${ } or a single $
Perl can do it with: perl -ne '/\$\{?(\w+)\}?/;print $1'
What shell can do? (8 Replies)
Discussion started by: honglus
8 Replies
9. UNIX for Dummies Questions & Answers
I need to read list of machines from a file using foreach loop.
I am trying the follwing, but its not reading the list
foreach i (`cat file.lst | awk '{print $1}'`)
ls -l | grep $i
end
here the file file.lst contains list of files
Any idea whats wrong here
Thanks
Krisyet (2 Replies)
Discussion started by: krisyet
2 Replies
10. Shell Programming and Scripting
I wrote a simplistic script which works fine in my HP Korn environment using for in do done but when I converted it for csh it is balking at my syntax specifically the parens for the argument. Any help would be appreciated
set -x
cut -f1 -d,... (3 Replies)
Discussion started by: r1500
3 Replies
foreach(1T) Tcl Built-In Commands foreach(1T)
__________________________________________________________________________________________________________________________________________________
NAME
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
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(1T), while(1T), break(1T), continue(1T)
KEYWORDS
foreach, iteration, list, looping
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 foreach(1T)
