9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have two files : Alpha and Beta.
The files are as follows (without arrow marks.)
Alpha:
A 1
D 90
G 11
B 24
C 15
Beta:
B 24
C 0 <--
G 11
D 20 <--
A 4 <--
E 777 <--
Expected output of the script :
Alpha: (2 Replies)
Discussion started by: linuxadmin
2 Replies
2. Shell Programming and Scripting
i am working on a shell script and need help in the comparing part of it. for e.g. there two text files like this:
file1.txt
name1
name2
name3
file1 has to be comared with file2
defaultfile.txt
name1
name2
name3
name4
and during comparision with defaultfile.txt
if... (2 Replies)
Discussion started by: draghun9
2 Replies
3. UNIX for Dummies Questions & Answers
Hello,
I have a dat file nctilllist.dat which will be present in the directory path
"/usr/lpp/web-data/mfg/nct/file-data/nctilllist.dat"
nctillist.dat will have reference to files like DP100001.jpg,DP10002.PDF,DP100003.doc
on the path /usr/lpp/web-data/mfg/nct/file-data will have... (12 Replies)
Discussion started by: gayathrivm
12 Replies
4. Shell Programming and Scripting
I have two files; file A and file B. I need all the entries of file A to be compared with file B line by line. If the entry exists on file B, then save those on file C; if no then save it on file D
Note :- all the columns of the lines of file A need to be compared, except the last two columns... (8 Replies)
Discussion started by: ajiwww
8 Replies
5. Shell Programming and Scripting
hi,
As such I am new to perl on google search I found a code for Perl script to compare two files and print differences between them and instead of prinintg I want to store the diff. in a outputfile so can sombody provide assistance upon this from where can I edit in script to store the diff in... (1 Reply)
Discussion started by: dinesh.4126
1 Replies
6. Shell Programming and Scripting
Hello Everyone,
I have strange situation and unable to think of a solution. Situation is as follow,
FolderA contrain following files,
File1
File2
File3
File4
I want to compare as follow
compare File1 with File2 --> Result Same/Diffrent
compare File1 with File3 --> Result... (1 Reply)
Discussion started by: ZalimJin
1 Replies
7. Shell Programming and Scripting
Im working on a shell script that uses three parameters, a string to replace, the string replacing, and a file name.
In this script it makes a back up file before the replacement occurs. However I want to be able to either search the file to see if it has the string and if it doesnt dont create... (5 Replies)
Discussion started by: gordonheimer
5 Replies
8. UNIX and Linux Applications
hi experts
please help me to compare two files which are in different directory
file1<file will be master file>
(/home/rev/mas.txt}
ex x1
x2
file2 <will be in different folder>
(/home/rev/per/.....)
ex x3
x4
the filesinside per folder i need to compare with master file... (1 Reply)
Discussion started by: revenna
1 Replies
9. Shell Programming and Scripting
HI
i wil get input from sql query and that too i can get a list o f files or just one.
i have to pick up a file from another directory which hads prefix to this prefix.x.x.x.x.x. And we have to discard prefix and use that file name.
we have to compare this file name(no need... (0 Replies)
Discussion started by: pulse2india
0 Replies
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)