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1. Shell Programming and Scripting
if I have the following lines in a file app.log
some lines here
<AAAA>
abc
<id>123456789</id>
ddd
</AAAA>some lines here too
<BBBB>
abc
<id>123456789</id>
ddd
</BBBB>some lines here too
<AAAA>
xyz
<id>987654321</id>
ssss
</AAAA>some lines here again...
How do I get the... (5 Replies)
Discussion started by: nariwithu
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2. Homework & Coursework Questions
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
You will write a script that will remove all HTML tags from an HTML document and remove any consecutive... (3 Replies)
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3. Shell Programming and Scripting
Hi all,
I have a file with the data
1 abc
2 123
3 ;
4 rao
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6 ;
7 call
8 abc
9 123
10 ;
11 rao
12 bell
13 ; (10 Replies)
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4. Shell Programming and Scripting
So I have two files. The first file, file1.txt, has lines of numbers separated by commas.
file1.txt
10,2,30,50
22,6,3,15,16,100
73,55
78,40,33,30,11
73,55
99,82,85
22,6,3,15,16,100
The second file, file2.txt, has sentences.
file2.txt
"the cat is fat"
"I like eggs"
"fish live in... (6 Replies)
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5. Shell Programming and Scripting
Hello,
I am in need of removing duplicate lines from within a file per section.
File:
ABC1 012345 header
ABC2 7890-000
ABC3 012345 Header Table
ABC4
ABC5 593.0000 587.4800
ABC5 593.5000 587.6580 <= dup need to remove
ABC5 593.5000 ... (5 Replies)
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6. Shell Programming and Scripting
please help me in getting following:
Input Desired output
x="foo" foo
x="foo foo" foo
x="foo foo" foo
x="foo abc foo" foo abc
x="foo foo1 foo2" foo foo1 foo2
I need to remove duplicated from string.. (8 Replies)
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7. Shell Programming and Scripting
Hi,
I need to concatenate three files in to one destination file.In this if some duplicate data occurs it should be deleted.
eg:
file1:
-----
data1 value1
data2 value2
data3 value3
file2:
-----
data1 value1
data4 value4
data5 value5
file3:
-----
data1 value1
data4 value4 (3 Replies)
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8. Shell Programming and Scripting
Hi,
how to remove the blank lines from the file only If we have more than one blank line.
thanks
rameez (8 Replies)
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9. UNIX for Dummies Questions & Answers
Hi,
I am trying to remove duplicate lines from a file. For example the contents of example.txt is:
this is a test
2342
this is a test
34343
this is a test
43434
and i want to remove the "this is a test" lines only and end up with the numbers in the file, that is, end up with:
2342... (4 Replies)
Discussion started by: ocelot
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10. UNIX for Dummies Questions & Answers
hi,
I have the following input in file:
abc
ab
a
AB
b
c
a
C
B
When I use uniq -u file,the out put file is:
abc
ab
AB
c
v
B
C (17 Replies)
Discussion started by: hellsd
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subst(1T) Tcl Built-In Commands subst(1T)
__________________________________________________________________________________________________________________________________________________
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 {$a}} |
return ``xyz {p} q {r}'', not ``xyz {p} q {r}''. |
When command substitution is performed, it includes any variable substitution necessary to evaluate the script. |
set a 44 |
subst -novariables {$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(1T), eval(1T), break(1T), continue(1T)
KEYWORDS
backslash substitution, command substitution, variable substitution
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Availability | SUNWTcl |
+--------------------+-----------------+
|Interface Stability | Uncommitted |
+--------------------+-----------------+
NOTES
Source for Tcl is available on http://opensolaris.org.
Tcl 7.4 subst(1T)