Hi all,
In unix shell, I want to get two strings ending with "." and starting with "." from a string "chan.txt"
For example, a string "chan.txt".
The first string is "chan"
The second string is "txt"
Yours
Wilson (1 Reply)
Hi all,
Iam trying to sort the contents of the file based on the position of the file.
Example:
$cat sample.txt
0101020060731 ## Header record
1c1 Berger Awc ANP20070201301 4000.50
1c2 Bose W G ANP20070201609 6000.70
1c2 Andy CK ANP20070201230 28000.00... (3 Replies)
I could really use some help with this issue. I'm having a lot of trouble getting my sed command to delete only the lines from my file that end with _;
I'm also supposed to carry the leading 'c' down to the next line. The commands I've tried either delete everything or nothing at all. Any help... (12 Replies)
Hi
I have a "set" command which ends with a "." (dot), for example:
set `grep "\<${pnum}\>" /tstmp/data.txt |sed 's/#//'` .
Can somebody help me to understand the purpose of this "set" and "." combination?
The problem is that this command does not produce the same result when run on AIX... (2 Replies)
I need to sort the following file by the rhdiskpower devices in the last column:
Total_MB Free_MB OS_MB Name Failgroup Library Label UDID Product Redund Path
1024 851 1024 OCRVOT1_0000 OCRVOT1_0000 System UNKNOWN ... (3 Replies)
hi,
please can I ask you for some help? I have data from 3D situation, x y z value
I'd like to use gnuplot to generate maps of the value in the planes z=0 to z=1 for example, my file looks
like
-0,012 0,0060 0,0 0,13972813076023477
-0,012 0,0064319163 4,2894483E-4 ... (1 Reply)
Hello All,
I have a scenario to read a file containing text like this:(say file name is Dummy.txt)
/home/abc/test1/ | file1
/home/abc/test2/ | file2
I used a variable to store the content from file like this (say for line1):
File=`head -1 Dummy.txt | cut -f1 -d "|"`
Dir=`head -1 Dummy.txt... (2 Replies)
I am trying to find out which files in a group of files have lines ending in r. What I have is this:
cat /tmp/*RECORDS| if grep r$>/dev/null; then echo "yes";else echo"no";fi
Records is more than one file. There are the following files
TEST-RECORDS
/volume/testing
/volume/programs
... (2 Replies)
Hi All,
I have 2 pipe delimited files viz., file_old and file_new. I'm trying to compare these 2 files, and extract all the different rows between them into a new_file.
comm -3 < sort file_old < sort file_new > new_file
I am getting the below error:
-ksh: sort: cannot open
But if I do... (7 Replies)
Discussion started by: njny
7 Replies
LEARN ABOUT REDHAT
lsort
lsort(n) Tcl Built-In Commands lsort(n)
__________________________________________________________________________________________________________________________________________________NAME
lsort - Sort the elements of a list
SYNOPSIS
lsort ?options? list
_________________________________________________________________DESCRIPTION
This command sorts the elements of list, returning a new list in sorted order. The implementation of the lsort command uses the merge-sort
algorithm which is a stable sort that has O(n log n) performance characteristics.
By default ASCII sorting is used with the result returned in increasing order. However, any of the following options may be specified
before list to control the sorting process (unique abbreviations are accepted):
-ascii Use string comparison with ASCII collation order. This is the default.
-dictionary Use dictionary-style comparison. This is the same as -ascii except (a) case is ignored except as a tie-breaker and (b)
if two strings contain embedded numbers, the numbers compare as integers, not characters. For example, in -dictionary
mode, bigBoy sorts between bigbang and bigboy, and x10y sorts between x9y and x11y.
-integer Convert list elements to integers and use integer comparison.
-real Convert list elements to floating-point values and use floating comparison.
-command command Use command as a comparison command. To compare two elements, evaluate a Tcl script consisting of command with the two
elements appended as additional arguments. The script should return an integer less than, equal to, or greater than
zero if the first element is to be considered less than, equal to, or greater than the second, respectively.
-increasing Sort the list in increasing order (``smallest'' items first). This is the default.
-decreasing Sort the list in decreasing order (``largest'' items first).
-index index If this option is specified, each of the elements of list must itself be a proper Tcl sublist. Instead of sorting
based on whole sublists, lsort will extract the index'th element from each sublist and sort based on the given element.
The keyword end is allowed for the index to sort on the last sublist element, and end-index sorts on a sublist element |
offset from the end. For example,
lsort -integer -index 1 {{First 24} {Second 18} {Third 30}}
returns {Second 18} {First 24} {Third 30}, and |
lsort -index end-1 {{a 1 e i} {b 2 3 f g} {c 4 5 6 d h}} |
returns {c 4 5 6 d h} {a 1 e i} {b 2 3 f g}. This option is much more efficient than using -command to achieve the
same effect.
-unique If this option is specified, then only the last set of duplicate elements found in the list will be retained. Note
that duplicates are determined relative to the comparison used in the sort. Thus if -index 0 is used, {1 a} and {1 b}
would be considered duplicates and only the second element, {1 b}, would be retained.
NOTES
The options to lsort only control what sort of comparison is used, and do not necessarily constrain what the values themselves actually
are. This distinction is only noticeable when the list to be sorted has fewer than two elements.
The lsort command is reentrant, meaning it is safe to use as part of the implementation of a command used in the -command option.
EXAMPLES
Sorting a list using ASCII sorting:
% lsort {a10 B2 b1 a1 a2}
B2 a1 a10 a2 b1
Sorting a list using Dictionary sorting:
% lsort -dictionary {a10 B2 b1 a1 a2}
a1 a2 a10 b1 B2
Sorting lists of integers:
% lsort -integer {5 3 1 2 11 4}
1 2 3 4 5 11
% lsort -integer {1 2 0x5 7 0 4 -1}
-1 0 1 2 4 0x5 7
Sorting lists of floating-point numbers:
% lsort -real {5 3 1 2 11 4}
1 2 3 4 5 11
% lsort -real {.5 0.07e1 0.4 6e-1}
0.4 .5 6e-1 0.07e1
Sorting using indices:
% # Note the space character before the c
% lsort {{a 5} { c 3} {b 4} {e 1} {d 2}}
{ c 3} {a 5} {b 4} {d 2} {e 1}
% lsort -index 0 {{a 5} { c 3} {b 4} {e 1} {d 2}}
{a 5} {b 4} { c 3} {d 2} {e 1}
% lsort -index 1 {{a 5} { c 3} {b 4} {e 1} {d 2}}
{e 1} {d 2} { c 3} {b 4} {a 5}
Stripping duplicate values using sorting:
% lsort -unique {a b c a b c a b c}
a b c
More complex sorting using a comparison function:
% proc compare {a b} {
set a0 [lindex $a 0]
set b0 [lindex $b 0]
if {$a0 < $b0} {
return -1
} elseif {$a0 > $b0} {
return 1
}
return [string compare [lindex $a 1] [lindex $b 1]]
}
% lsort -command compare
{{3 apple} {0x2 carrot} {1 dingo} {2 banana}}
{1 dingo} {2 banana} {0x2 carrot} {3 apple}
SEE ALSO
lappend(n), lindex(n), linsert(n), list(n), llength(n), lrange(n), lreplace(n), lsearch(n)
KEYWORDS
element, list, order, sort
Tcl 8.3 lsort(n)