10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi all,
I have a file that looks like this-
-----------------------------
.
.
ATOM 8 O2' U A 5 135.452 109.687 7.148 1.00 48.99 A16S
ATOM 9 C1' U A 5 135.282 111.512 5.641 1.00 48.99 A16S
ATOM 10 N1 U A 5 134.647 112.595 ... (2 Replies)
Discussion started by: asmi_g
2 Replies
2. Shell Programming and Scripting
Hi:)
I have a large file ( couple thousand lines ) and I'm trying to add a character after the first word/space on each line.
eg:
First line of text
Second line of text
Third line of text
Fourth line of text
Fifth line of text
I'd like to accomplish:
First - line of text
Second... (8 Replies)
Discussion started by: martinsmith
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3. UNIX for Dummies Questions & Answers
Hi,
var=QSB SBD SDN SGJ SJP SKB SKD SLP SML SNB SRE SRG STP TAJ UMP UNO VKS VND VNS WAH ZRR
I have to put *.sql after every word
What I did
echo $var>/root/file1.sql
sed -i 's/ /*.sql /g' file1.sql
cat file1.sql
Output
QSB*.sql SBD*.sql SDN*.sql SGJ*.sql SJP*.sql SKB*.sql... (9 Replies)
Discussion started by: kaushik02018
9 Replies
4. Shell Programming and Scripting
Hi,
I am having a text file with following contents:
word
word
I want to grep the first line i.e. word that is being preceded with three space characters.
So i tried
sed -n '/ {3}/p' filename
grep " {3}" filename
But is not returning any result. If i don't use {}, then it... (5 Replies)
Discussion started by: sarbjit
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5. Shell Programming and Scripting
Hi All,
I have a file in which a number of lines are starting with similar first word but different next words.
I want to replace the any nth word(not 1st or 2nd) with another word.
Eg:- My file contains are like this:-
Ram is a boy.
Ram is a good boy.
Ram plays cricket.
Here I want to... (2 Replies)
Discussion started by: mukeshbaranwal
2 Replies
6. Shell Programming and Scripting
Hi all,
FileOne
family balance >>>>>
0 0
0 0
java.io.FileNotFoundException: Settings.xml (No such file or directory)
at java.io.FileInputStream.open(Native Method)
..
....
.....
.....
java.lang.NullPointerException
...
.....
......
Stacktrace:
at... (2 Replies)
Discussion started by: linuxadmin
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7. Shell Programming and Scripting
Hello, I have an output like
Interface Chipset Driver wlan0 Intel 4965/5xxx iwlagn - and I want to take only the 'wlan0' string. This can be done by
a="Interface Chipset Driver wlan0 Intel 4965/5xxx iwlagn - "
b=${a:25:6}
echo $bThe thing is that wlan0 can be something else, like eth0 or... (2 Replies)
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8. Shell Programming and Scripting
My source is on each line
98.194.245.255 - - "GET /disp0201.php?poc=4060&roc=1&ps=R&ooc=13&mjv=6&mov=5&rel=5&bod=155&oxi=2&omj=5&ozn=1&dav=20&cd=&daz=&drc=&mo=&sid=&lang=EN&loc=JPN HTTP/1.1" 302 - "-" "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.0.3705; .NET CLR... (5 Replies)
Discussion started by: elamurugu
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9. Shell Programming and Scripting
Hi All,
my string is:
Alabama Tax Experts
I want to take Alabama in one separate variable, means every first element of a string in perl....
please help (5 Replies)
Discussion started by: gentleDean
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10. Shell Programming and Scripting
Hi,
I need to check if the value returned by this query is bigger then 20000.
It's not working!
I think that the problem is that the return is with white spaces. How to solve this?
Tks,
Paulo Portugal.
#######################
RESPOSTA=`/oracle/app/product/10.2/bin/sqlplus -s <<EOF
/ as... (2 Replies)
Discussion started by: paulofp
2 Replies
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)