I already have a solution to my problem, but I'm looking to see if it can be made more succinct and faster. The problem: given a list, as shown below, extract the pathname for any file in a directory named '[Ss]ample' and return it's index into the list. The index is also in the data itself. Note that pathnames can contain spaces. I'm also trying to avoid non-POSIX syntax and tools.
Hi,
I have prepared script which is taking more time to process. find below script and help me with fast optimized script:-
cat name.txt | while read line
do
name=$(echo $line| awk '{print $8}')
MatchRecord=$(grep $name abc.txt | grep -v grep )
echo "$line | $MatchRecord" | awk... (2 Replies)
:o Hi,
I am writing a script in which at some time, I need to get the process id of a special process and kill it...
I am getting the PID as follows...
ps -ef | grep $PKMS/scripts | grep -v grep | awk '{print $2 }'can we optimize it more further since my script already doing lot of other... (3 Replies)
Dear All,
Sorry to bother you. But I tried the below problem but didn't come up a good solution. A have a file containing such info
2009-03-14 22:01:01,430 ::
2009-03-14 22:05:01,430 ::
I need to show simply
22:01:01, 568, 181, 472
22:05:01, 903, 458, 572
that is time, TID,... (11 Replies)
I have a file which contains 9,200,000. It contains 125 clolumns. I have to rearrange some columns and exclude some of them. I scripted the following script to do the same. It is working fine but it is taking more than 4hrs to do it. can it be optmized.
Here is the script
LOC="/sourcefile/"... (3 Replies)
Can anyone point me to the right direction on how to write a simple script that will display a message on any terminal when implemented?
Basically I need it so the script runs at a certain time, say April 30, 2010 and that the message will be displayed to me no matter which terminal I am logged... (2 Replies)
I have created Shell script with below awk code for replacing special characters from input file.
Source file has 6 mn records. This script was able to handle 2 mn records in 1 hr. This is very slow speed and we need to optimise our processing.
Can any Guru help me for optimization... (6 Replies)
Hi,
I have a csh:
set NODES = `cat $HOST_FILE`
set NODELIST = $TMPDIR/namd2.nodelist
echo group main >! $NODELIST
foreach node ( $NODES )
echo host $node >> $NODELIST
end
@ NUMPROCS = 2 * $#NODES
I am very frustrated to translate it to bash:
NODES = `cat... (3 Replies)
Since there are approximately 75K gsfiles and hundreds of stfiles per gsfile, this script can take hours. How can I rewrite this script, so that it's much faster? I'm not as familiar with perl but I'm open to all suggestions.
ls file.list>$split
for gsfile in `cat $split`;
do
csplit... (17 Replies)
Hello,
I want to submit my awk script into cluster queue as my job takes about forty minutes to finish so I can not run it on the main node.
My awk script is like the following and I have three files. so, I write :
qsub -q short.q Myscript.awk file1 file2 file3
It submits the work into... (1 Reply)
Discussion started by: Homa
1 Replies
LEARN ABOUT SUSE
lindex
lindex(n) Tcl Built-In Commands lindex(n)
__________________________________________________________________________________________________________________________________________________NAME
lindex - Retrieve an element from a list
SYNOPSIS
lindex list ?index...?
_________________________________________________________________DESCRIPTION
The lindex command accepts a parameter, list, which it treats as a Tcl list. It also accepts zero or more indices into the list. The
indices may be presented either consecutively on the command line, or grouped in a Tcl list and presented as a single argument.
If no indices are presented, the command takes the form:
lindex list
or
lindex list {}
In this case, the return value of lindex is simply the value of the list parameter.
When presented with a single index, the lindex command treats list as a Tcl list and returns the index'th element from it (0 refers to the
first element of the list). In extracting the element, lindex observes the same rules concerning braces and quotes and backslashes as the
Tcl command interpreter; however, variable substitution and command substitution do not occur. If index is negative or greater than or
equal to the number of elements in value, then an empty string is returned. The interpretation of each simple index value is the same as |
for the command string index, supporting simple index arithmetic and indices relative to the end of the list.
If additional index arguments are supplied, then each argument is used in turn to select an element from the previous indexing operation,
allowing the script to select elements from sublists. The command,
lindex $a 1 2 3
or
lindex $a {1 2 3}
is synonymous with
lindex [lindex [lindex $a 1] 2] 3
EXAMPLES
lindex {a b c}
-> a b c
lindex {a b c} {}
-> a b c
lindex {a b c} 0
-> a
lindex {a b c} 2
-> c
lindex {a b c} end
-> c
lindex {a b c} end-1
-> b
lindex {{a b c} {d e f} {g h i}} 2 1
-> h
lindex {{a b c} {d e f} {g h i}} {2 1}
-> h
lindex {{{a b} {c d}} {{e f} {g h}}} 1 1 0
-> g
lindex {{{a b} {c d}} {{e f} {g h}}} {1 1 0}
-> g
SEE ALSO
list(n), lappend(n), linsert(n), llength(n), lsearch(n), lset(n), lsort(n), lrange(n), lreplace(n), string(n) |
KEYWORDS
element, index, list
Tcl 8.4 lindex(n)