Hi!
I'm trying to sort a file.dat with the sort command. The data contained by file.dat is similar to the data set below:
100.000
99.000
110.000
55.000
113.000
33.000
25.000
9.000
15.000
It is relatively easy to sort the data in ascending or descending order, but the problem is... (11 Replies)
This is an extension to a question that was earlier posted on this forum:
I have task in which I need to pickup a set of files from a directory
depending on the following criteria:
Every month 6 files are expected to arrive at /test.
The files come with date timestamp and the latest file set... (7 Replies)
I have a directory with a large number (1000s) of files and I need to produce a file listing all the files in the directory ordered "properly" (properly will be explained shortly).
The files have the following naming pattern:
bul_13_5_228_b.txt
bul_1_3_57.txt
bul_13_6_229.txt... (2 Replies)
Im trying to sort all this data.
I need to get a list out of the data (websites) and just list them out can anyone point me in the right direction. Im working with dans guardian.
2009.6.10 6:26:50 - 192.168.42.200... (5 Replies)
Hi, I'm working on gathering information stored in .txt files. The format of the data within the .txt files is shown in the picture uploaded with this post. Sections like the one pictured are repeated (with different data, same format) many times within each .txt file but each section is of data... (4 Replies)
Hi,
I need to filter the output of a command and display certain data only. How can i do this ?
My file contain:
$ cat abc.txt
<testcase title="AAA_100">
<testcase title="BBB_200">
<testcase title="CCC_300">
<testcase title="DDD">
... (3 Replies)
I have bash, awk, and sed available on my portable device. I need to extract 10 fields from each table row from a web page that looks like this:
</tr>
<tr>
<td>28 Apr</td>
<td><a... (6 Replies)
Hello,
To simplify ma question, here is my list :
# cat liste
a
m
x
h
and here is the right order to list his component :
liste_order="1:m 2:a 3:h 4:x"
The only way to sort my file like I want, I find this idea :
cat liste | sed 's/a/2:a/g' | sed 's/m/1:m/g' | sed... (9 Replies)
Hello All,
I have one file with multiple lines records like as below.. I need to extract only BFG and corresponding BSG record/line. for evry BFG there is one BSG record is there as mentioned in BOLD and so on...
BFG BR 00001 20140724 000 000 ? ?
BLG UVR QPR 01 380 ? ? 999 0 0 0 ?
BLC... (2 Replies)
Hi,
I'm trying to transform my data from the following format:
eps:, 0.248281687841641, -2.83539034165844e-7, 2.78042576353472+6.3505226053266e-6i
to this:
eps:, 0.248281687841641, -2.83539034165844e-7, 2.78042576353472, +6.3505226053266e-6
so I can plot it with GnuPlot.
how do I... (4 Replies)
Discussion started by: rogeriogouvea
4 Replies
LEARN ABOUT SUSE
subst
subst(n) Tcl Built-In Commands subst(n)
__________________________________________________________________________________________________________________________________________________NAME
subst - Perform backslash, command, and variable substitutions
SYNOPSIS
subst ?-nobackslashes? ?-nocommands? ?-novariables? string
_________________________________________________________________DESCRIPTION
This command performs variable substitutions, command substitutions, and backslash substitutions on its string argument and returns the
fully-substituted result. The substitutions are performed in exactly the same way as for Tcl commands. As a result, the string argument
is actually substituted twice, once by the Tcl parser in the usual fashion for Tcl commands, and again by the subst command.
If any of the -nobackslashes, -nocommands, or -novariables are specified, then the corresponding substitutions are not performed. For
example, if -nocommands is specified, command substitution is not performed: open and close brackets are treated as ordinary characters
with no special interpretation.
Note that the substitution of one kind can include substitution of other kinds. For example, even when the -novariables option is speci-
fied, command substitution is performed without restriction. This means that any variable substitution necessary to complete the command
substitution will still take place. Likewise, any command substitution necessary to complete a variable substitution will take place, even
when -nocommands is specified. See the EXAMPLES below.
If an error occurs during substitution, then subst will return that error. If a break exception occurs during command or variable substi-
tution, the result of the whole substitution will be the string (as substituted) up to the start of the substitution that raised the excep-
tion. If a continue exception occurs during the evaluation of a command or variable substitution, an empty string will be substituted for
that entire command or variable substitution (as long as it is well-formed Tcl.) If a return exception occurs, or any other return code is
returned during command or variable substitution, then the returned value is substituted for that substitution. See the EXAMPLES below.
In this way, all exceptional return codes are "caught" by subst. The subst command itself will either return an error, or will complete
successfully.
EXAMPLES
When it performs its substitutions, subst does not give any special treatment to double quotes or curly braces (except within command sub-
stitutions) so the script
set a 44
subst {xyz {$a}}
returns "xyz {44}", not "xyz {$a}" and the script
set a "p} q {r"
subst {xyz {$a}}
returns "xyz {p} q {r}", not "xyz {p} q {r}".
When command substitution is performed, it includes any variable substitution necessary to evaluate the script.
set a 44
subst -novariables {$a [format $a]}
returns "$a 44", not "$a $a". Similarly, when variable substitution is performed, it includes any command substitution necessary to
retrieve the value of the variable.
proc b {} {return c}
array set a {c c [b] tricky}
subst -nocommands {[b] $a([b])}
returns "[b] c", not "[b] tricky".
The continue and break exceptions allow command substitutions to prevent substitution of the rest of the command substitution and the rest
of string respectively, giving script authors more options when processing text using subst. For example, the script
subst {abc,[break],def}
returns "abc,", not "abc,,def" and the script
subst {abc,[continue;expr {1+2}],def}
returns "abc,,def", not "abc,3,def".
Other exceptional return codes substitute the returned value
subst {abc,[return foo;expr {1+2}],def}
returns "abc,foo,def", not "abc,3,def" and
subst {abc,[return -code 10 foo;expr {1+2}],def}
also returns "abc,foo,def", not "abc,3,def".
SEE ALSO
Tcl(n), eval(n), break(n), continue(n)
KEYWORDS
backslash substitution, command substitution, variable substitution
Tcl 7.4 subst(n)