10-06-2009
rename - change n'th character of regexp
Hi,
I wonder if its possible to do the following task using rename (perl v5.8.8).
I want to find filenames matching the specific pattern and then change chosen character of this pattern to a given character, e.g. do the following renaming:
regexp: 'a[12]b' -----> 'a0b'
What's the simplest solution for this? Is one-line rename possible?
Thx!
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello all
i have some function what looks like this
class.method("servantName").servantMethod(arg1,arg2,arg3)
now i need to convert it to :
class.method("servantName","servantMethod",arg1,arg2,arg3);
is there any wasy way to do that consider that the arg1+2+3 can be also... (1 Reply)
Discussion started by: umen
1 Replies
2. Shell Programming and Scripting
Hello Experts,
Can someone help me here:
I have a variable which contains a string with "".
set var1 {a}
set str1 {a is the element i want to match}
Now "regexp $var1 $str1" does not work?
("regexp {a\} $str1" works, but var1 gets it's value automatically from another script)
Is... (6 Replies)
Discussion started by: sumitgarg
6 Replies
3. Shell Programming and Scripting
I use SAS (a statistical software) and have to remove last character or the last 1/2 numbers that appear after characters from the string using Perl Regular Expression (which is recognized by SAS).
Input: f183ii10 f183ii2 f182ii1 f182ii2 f183iim f22ii f22ii11 f22ii12 pmh4 pmhm
Desired... (2 Replies)
Discussion started by: ospreyeagle
2 Replies
4. UNIX for Dummies Questions & Answers
Good Day,
Im new to scripting especially awk and sed. I just would like to ask help from you guys about a sed command that prints the line immediately after a regexp, but not the line containing the regexp.
sed -n '/regexp/{n;p;}' filename
What if my regexp is 3 word or a sentence. Im... (3 Replies)
Discussion started by: ownins
3 Replies
5. UNIX for Dummies Questions & Answers
I searched the forum, but there was different type of rename.
Hello.
I have files in folder.
Like:
xxxxxxxx1.html
or
xxxxxxxx2.txt
or
xxxxxxxx3.tar.gz
and how to rename or change file extension case to
xxxxxxxx1.htm
or
xxxxxxx2.TXT
or (5 Replies)
Discussion started by: Sheldon
5 Replies
6. UNIX for Dummies Questions & Answers
Hi,
I am learning reg exp a bit :)
Meta char info:
{n,m} Matches the preceding character at least n times but not more than m times, for example, 'ba{2,3}b' will find 'baab' and 'baaab' but NOT 'bab' or 'baaaab'. Values are enclosed in braces (curly brackets).
Input file:
112
11112... (2 Replies)
Discussion started by: dragon.1431
2 Replies
7. Shell Programming and Scripting
Dear All,
Please help !
i ham having 300 file with E.G. PMC1_4567.arc in seq. like PMC1_4568.arc,PMC1_4569.arc ...n and so on.. i want all those file to be rename like PMC_4567.arc ,PMC_4568.arc .. mean i want to remove 1 from first file name ..
pls help.. (6 Replies)
Discussion started by: moon_22
6 Replies
8. Shell Programming and Scripting
I'm probably just not thinking of the correct term to search for :-) But I want to match a pattern that might be 'ABC' or '1ABC' there might be three characters, or there might be four, but if there are four, the first has to be 1 (1 Reply)
Discussion started by: jnojr
1 Replies
9. Shell Programming and Scripting
Hi all,
I am trying to filter out those lines that contain a "non-alpha" character.
An example of my input is the following:
zygnematales grb
zygocactus grb
zygocactus_truncatus plt
zygodactyl_foot prt
zygoma prt
zygomatic prt
zygomatic_arch prt
zygomatic_bone ... (2 Replies)
Discussion started by: owwow14
2 Replies
10. UNIX for Beginners Questions & Answers
Hi All,
I need to print the characters in the previous line just before the regular expression match
Please have a look at the input file as attached
I need to match the regular expression ^ with the character of the previous like and also the pin numbers
and the output file should be like... (6 Replies)
Discussion started by: kshitij
6 Replies
LEARN ABOUT REDHAT
switch
switch(n) Tcl Built-In Commands switch(n)
__________________________________________________________________________________________________________________________________________________
NAME
switch - Evaluate one of several scripts, depending on a given value
SYNOPSIS
switch ?options? string pattern body ?pattern body ...?
switch ?options? string {pattern body ?pattern body ...?}
_________________________________________________________________
DESCRIPTION
The switch command matches its string argument against each of the pattern arguments in order. As soon as it finds a pattern that matches
string it evaluates the following body argument by passing it recursively to the Tcl interpreter and returns the result of that evaluation.
If the last pattern argument is default then it matches anything. If no pattern argument matches string and no default is given, then the
switch command returns an empty string.
If the initial arguments to switch start with - then they are treated as options. The following options are currently supported:
-exact Use exact matching when comparing string to a pattern. This is the default.
-glob When matching string to the patterns, use glob-style matching (i.e. the same as implemented by the string match command).
-regexp When matching string to the patterns, use regular expression matching (as described in the re_syntax reference page).
-- Marks the end of options. The argument following this one will be treated as string even if it starts with a -.
Two syntaxes are provided for the pattern and body arguments. The first uses a separate argument for each of the patterns and commands;
this form is convenient if substitutions are desired on some of the patterns or commands. The second form places all of the patterns and
commands together into a single argument; the argument must have proper list structure, with the elements of the list being the patterns
and commands. The second form makes it easy to construct multi-line switch commands, since the braces around the whole list make it unnec-
essary to include a backslash at the end of each line. Since the pattern arguments are in braces in the second form, no command or vari-
able substitutions are performed on them; this makes the behavior of the second form different than the first form in some cases.
If a body is specified as ``-'' it means that the body for the next pattern should also be used as the body for this pattern (if the next
pattern also has a body of ``-'' then the body after that is used, and so on). This feature makes it possible to share a single body among
several patterns.
Beware of how you place comments in switch commands. Comments should only be placed inside the execution body of one of the patterns, and
not intermingled with the patterns.
Below are some examples of switch commands:
switch abc a - b {format 1} abc {format 2} default {format 3}
will return 2,
switch -regexp aaab {
^a.*b$ -
b {format 1}
a* {format 2}
default {format 3}
}
will return 1, and
switch xyz {
a
-
b
{
# Correct Comment Placement
format 1
}
a*
{format 2}
default
{format 3}
}
will return 3.
SEE ALSO
for(n), if(n), regexp(n)
KEYWORDS
switch, match, regular expression
Tcl 7.0 switch(n)