07-28-2012
I thought it should be possible without a loop and i remember having done something similar before. its just driving me nuts.
If it is absolutely necessary or much simpler to use a loop i wouldnt mind it, however would be great if it was without one
Also I bet a friend it is possible
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi all,
Lets say I have 3 files a.txt and b.txt and c.txt.
a.txt has the following text
====================
apple is good for health
b.txt has the following text
====================
apple is pomme in french
c.txt has the following text
====================
orange has citric acid... (1 Reply)
Discussion started by: amjath78
1 Replies
2. UNIX for Advanced & Expert Users
Hi,
I would appriciate if somebody can help me figure out how to search for all the *.xml file under a specific directory and subdirectroies (/home/username) and later search of content "<start>" inside the xml file returned by search.
-Lovin.V (2 Replies)
Discussion started by: lovi_v
2 Replies
3. SuSE
Hello Linux Masters,
I am not a linux expert therefore i need help from linux gurus.
Well i have a requirement where i need to search all files based on first patterns and after seraching all files then serach second pattern in all files which i have extracted based on first pattern.... (1 Reply)
Discussion started by: Black-Linux
1 Replies
4. Shell Programming and Scripting
Hello Guys
I have a directory of xml files (almost 500 ) Now in each xml file 3 new attributes will be added which are in a different single file
Is there any way I can copy the whole content of single file at 6th line of all the files in the directory .
Thanks a lot!!! (7 Replies)
Discussion started by: Pratik4891
7 Replies
5. Shell Programming and Scripting
Have to read one file say sourcefile containing several words and having another folder containing several files.
Now read the first word of Sourcefile & search it into the folder consisting sevral files, and create another file with result. We hhave to pick the filename of the file in which... (3 Replies)
Discussion started by: mukesh.baranwal
3 Replies
6. Shell Programming and Scripting
I have a file 1.txt with the below contents.
-----cat 1.txt-----
1234
5678
1256
1234
1247
-------------------
I have 3 more files in a folder
-----ls -lrt-------
A1.txt
A2.txt
A3.txt
-------------------
The contents of those three files are similar format with different data values... (8 Replies)
Discussion started by: realspirituals
8 Replies
7. Shell Programming and Scripting
Hi , Need to shell script to extracts files names and write those to another file in different directory.
input file is
inputfile.txt
abc|1|bcd.dat
123 david123
123 rudy2345
124 tinku5634
abc|1|def.dat
123 jevid123
123 qwer2345
124 ghjlk5634
abc|1|pqr.txt
123 vbjnnjh435
123 jggdy876... (1 Reply)
Discussion started by: dssyadav
1 Replies
8. Shell Programming and Scripting
Hi,I have 2 files master.txt & reference.txt as shown below & i require o/p as mentioned in file 3 using awk but content is not replacing properlymaster.txt:... (15 Replies)
Discussion started by: siramitsharma
15 Replies
9. Shell Programming and Scripting
Hi All,
Your help on the below requirement is highly appreciated.
I am building a program which should pick the file from a source directory and place them into target directory. While selecting the file in source it should look for some pattern in the file name.
Ex:
File Name 1:... (10 Replies)
Discussion started by: bharath561989
10 Replies
10. UNIX for Beginners Questions & Answers
I have two file as given below which shows the ACL permissions of each file. I need to compare the source file with target file and list down the difference as specified below in required output. Can someone help me on this ?
Source File
*************
# file: /local/test_1
# owner: own
#... (4 Replies)
Discussion started by: sarathy_a35
4 Replies
LEARN ABOUT CENTOS
foreach
foreach(n) Tcl Built-In Commands foreach(n)
__________________________________________________________________________________________________________________________________________________
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
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(n), while(n), break(n), continue(n)
KEYWORDS
foreach, iteration, list, looping
Tcl foreach(n)