if you use the $( .. ) syntax in place you'll then be able to nest them.
Hi there,
In place where? I tried (in different positions) already but it seems to ignore the $(...) syntax altogether and produce a similar error output:
Is it possible to use the ls command and NOT see the total blocks? For example, instead of seeing this...
$ ls -l
total 16
drwxr-xr-x 2 voicem voicem 4096 Dec 3 09:19 directory1
drwxr-xr-x 2 voicem voicem 4096 Dec 1 01:29 directory2
drwxr-xr-x 2 voicem voicem 4096 Dec 2 00:47 directory3... (5 Replies)
I'm Unix. I'm looking at "df" on Unix now and below is an example. It's lists the filesystems out in 512-blocks, I need this in 4k blocks. Is there a way to do this in Unix or do I manually convert and how?
So for container 1 there is 7,340,032 in size in 512-blocks. What would the 4k block be... (2 Replies)
Hello,
I have a file like this:
FILE.TXT:
(define argc :: int)
(assert ( > argc 1))
(assert ( = argc 1))
<check>
#
(define c :: float)
(assert ( > c 0))
(assert ( = c 0))
<check>
#
now, i want to separate each block('#' is the delimeter), make them separate files, and then send them as... (5 Replies)
Hi
It happens when I try to delete a file of 250MB with the command rm -r on our old Intergraph CLIX that the filename disappears while the blocks remain on the machine. Only when I reboot the system the blocks really disappear. Then rm works again for sometime but after some time it happens... (15 Replies)
Hi everyone,
I have a data.xml file which only contains thousands of data (tag) blocks. A part of the file looks exactly like this;
<data>
Line
Line
Line
</data>
<data>
Line
Line
Line
</data>
the rest of the file is simply a repetition of this part. Here each data block contains a... (8 Replies)
Hello,
Searched for a while and found some "line-to-column" script. My case is similar but with multiple fields each row:
S02 Length Per
S02 7043 3.864
S02 54477 29.89
S02 104841 57.52
S03 Length Per
S03 1150 0.835
S03 1321 0.96
S03 ... (9 Replies)
please help, I have a huge file with blocks of data which I need to convert to a tabular format.
Input
sample
id: GO:0000017
name: alpha-glucoside transport
namespace: biological_process
def: "The directed movement of alpha-glucosides into, out of or within a cell, or between... (3 Replies)
Just began to learn on Shell Script. I got an exercise from my friend. I know how to make this happen in C, but I'm not familiar with Shell Script. Hope I can get some help from all of you.
I want to write a bash script to comment code blocks in a bash source file. What I mean comment is '#', I... (1 Reply)
Hi,
I have Solaris-10 OS on T5220. Both local disks were mirrored under SVM. Somehow when one disk gone bad (c0t1d0), other disk (c0t0d0) also got lot of bad block. We have readable data only on c0t0d0, but as soon as server comes after, it hangs when I run few commands because of read errors,... (1 Reply)
Discussion started by: solaris_1977
1 Replies
LEARN ABOUT MOJAVE
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)