input.txt is just a delimited file with text required for my script to process. My subfuncx functions would require entire line and each of these functions have different objectives with each of these variables. Hence the best way is to pass the entire line to each of these subfunctions but that would mean that I will have to write split for every variable I require. Is there any better way to do that?
All,
I have a sh script of the following tune:
function a () { #functionality.. }
function b () { #functionnlity.. }
function check () { # this function checks for env and if all fine call build }
function usage () { #sh usage details }
function build () { #calls either a or b or... (5 Replies)
Hi,
I have a function that hold 3 arrayies.
I need to pass them to another function as an input, for further use
Could you please explain how to do that.
Thanks (5 Replies)
hi all
i am etl guy
i have shell script that i use to do processing on file.
the problem is that i want it to use on multiple files at same time
is there any way of passing the file name since my all my filename start with samename like abc*
p,ease let me know (4 Replies)
Hi I have 2 files a.c and a.bak where I changed long to int using awk script.
I want to get the list of functions whose parameters got modified
for eg: fun ( long a, long b ) might be changed to fun ( int a, int b ) (1 Reply)
hi there
I have the following script in which i have created a PrintHash() function.
I want to pass to this function the reference to a hash (in the final code i will be passing different hashes to this print function hence the need for a function). I am getting an error
Type of arg 1 to... (1 Reply)
Hi,
Please help me with the below situation where I have to handle the parameters passed to a function in a unique way.
Below is the code, which I am trying to execute. I basically want to pass the parameter to a function, where I am trying to get user input into array(s). I want to name... (7 Replies)
Hi All,
My target is to find the list of orphan processes running and i issue the below command with some exception ids.
ps -ef | egrep -v "root|system|admin" | awk '{if ($3 == 1) print $1",\t"$2",\t"$3}'
but this will exclude the process having the word 'root' and executing under different... (1 Reply)
I have 7 functions those need to be executed as command line inputs, I tried with below code it’s not executing function. If I run the ./script 2 then fun2 should execute , how to initiate that function I tried case and if else also, how to initiate function from command line
if
then... (8 Replies)
Hi ,
I have a script which is using a text file as I/P.
I want a code where it reads n lines from this file and pass the parameters to a function and now this script should run in such a way where a function can be called in parallel with different parameters. Please find below my script, it... (1 Reply)
I'm reading a text file using a while loop but when I call a function from within this loop it exits that same iteration … even though there are many more lines in the file to be read.
I thought it was something to do with the IFS setting but it appears that a function call (when run... (3 Replies)
Discussion started by: user052009
3 Replies
LEARN ABOUT OSX
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)