General :: Check If Any Of The Parameters To A Bash Script Match A String?

Sep 8, 2010

I'm trying to write a script where I want to check if any of the parameters passed to a bash script match a string. The way I have it setup right now is if [ "$3" != "-disCopperBld" -a "$4" != "-disCopperBld" -a "$5" != "-disCopperBld" -a "$6" != "-disCopperBld"]but there might be a large number of parameters, so I was wondering if there is a better way to do this?EDIT:I tried this chunk of code out, and called the script with the option, -disableVenusBld, but it still prints out "Starting build". Am I doing something wrong?

while [ $# -ne 0 ]
do
arg="$1"

[code]....

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General :: Sed Remove String Until Final Match?

Mar 20, 2010

I have been fighting with a sed statement trying to get it to remove everything in a string until the last match and have been failing badly. how to get this to work..

sed --> enterprises.9.9.171.1.5.2.1.1.5
returns 5

I want sed to strip everything out until the last period. The final digit can and will change. Some parts before the final period can change as well, since enterprises will sometimes also be represented as more numbers and periods.

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General :: Get N-variable Parameters In Bash

Mar 21, 2011

I've a script that it's invoked with n-variable parameters. Here's an examples:

Code:
./myprogram.sh inputdir FIELD1 FIELD2 ... FIELDN outputfile In the script I would like to get the FIELD names that were passed.

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General :: Use Sed In Bash To Match Pattern Contained In 2 Lines?

Mar 14, 2011

I have a file called test. It has the following contents.Code:there youI want the output to be.Code:replaced youI am trying to use the sed command to replace every occurance of "hey newline there" with "replaced". I tried the following naive apporach.Code:sed 's/heythere/replace/' testThis gives a result containing the same data as the test file.

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Programming :: How To Check If All Letters Of One String Are In Another String?

Nov 11, 2010

I have the following two type of strings1: A/D2: A/C/DI am trying to write a subroutine to check whether all of the letters in string 1 appears in string 2. If yes, return true. If not, return false. In the above example, all the letters (A and D) in string 1 are also present in string 2, so I return true.

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General :: Script To Check The String?

Oct 8, 2009

there is a program will generate a log to the text file , this program will run times per day , can advise if I want to check the text file , if the text file have a string "Uuable to run program" , then send mail to me , can advise what can i do ?

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Programming :: Match A Literal String In Awk?

Jun 2, 2011

how I can match a literal string in awk i.e. making awk to *not* interpret the characters coressponding to its builtin operators in a given string. Take this code:

[Code]...

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Programming :: String Match In Perl ?

Sep 15, 2010

One of my application generates a text file with an XML output in it. I need to read that log files and if the output does not match to a string in couple of tags it should create a log file with the file name and the the tag name.

The two tags where the string should match is:

Identity format tag should always be JPEG , well- formed and valid status tags should be true.

sample output file:

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Programming :: Sed - Awk - Perl - Merge Lines Unless They Match A Certain String

Apr 15, 2011

What is the best way to merge lines, in sed, awk or perl, that occur between certain strings? I'm new to sed scripting and I have been working on this for some time now. I have a large file (sample below) that I need to edit.

What I need looks something like this.

I'm working with a very large file so simply merging all the lines then adding a new line character before ">contig" and after "translated" won't work, at least not with sed.

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Programming :: Sed Regex Get Multiple String Match In Array?

Apr 8, 2011

I have a sed match that matches for certain string of a regex expression:

Code:
tname=$(echo "$contents" | sed -n 'some pattern')

How do I match for multiple strings in the $contents and return them as an array? for example

Code:
contents="this is a text, just to match patterns, here is another text to be matched"
the sed func would be able to recognize both "text"s, but only one is outputted?

Possible to put it in an array? so ${bar[0]} gives one and ${bar[1]} gives another

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Security :: Change Values Of Parameters For Iptables "recent" Match?

Dec 8, 2010

According to the man page, the "recent" match of iptables accepts certain parameters (e.g. "ip_list_tot"). I'd like to change the values of some of them.
All the solutions found on the web were about changing parameters for module, but my kernel was compiled without modules support (such that it can be used for installation booting as well).
How can I change the match parameters for my non-modular kernel ?

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Programming :: Gawk Statement To Match Range Of Filed For String?

Jul 30, 2010

adf 32 324 100 100 24 234I want a gawk statement to match the above line if lets sayand field between 4 and 6 == 100.

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General :: Get Part Of A String In Bash ?

Mar 10, 2011

I've a string "this.is.a.name", and I would like to return "is.a.name". How can I do that in bash?

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General :: Parse String In Bash Script?

Nov 8, 2009

I have to create a bash script that takes an arbitrary length number from the command line, and add up each individual digit

Ex:
server> myscript.sh 123
server> 1 + 2 + 3 = 6

The problem I'm having is pulling out each character.

Is there a way in bash I can parse the input string for each character? I can't figure out a way to do this.

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General :: Return Part Of A String In Bash?

Mar 20, 2011

I would like to return the last part of a string in an array of strings in bash.

The array contains in each position the content below:

Code:
a.b.c
a.d.f
a
a.d

[Code].....

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General :: Split A String Into Array In Bash?

Mar 17, 2011

how do I split a string into an array?In this string:"this is a story"how do I split it by the space?

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General :: Environmental Variable In Bash Command String?

Feb 9, 2011

I do this:

Code:

a@b:~$ export A=hi
a@b:~$ echo $A
hi
a@b:~$ bash -c "export A=blah; echo $A"
hi
a@b:~$

Why doesn't the bash command print the new value of $A? Is there a way to make it do so?

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General :: Evaluation Of Postfix String Using Bash Shell

Mar 15, 2011

I would like to evaluate a postfix string using bash shell script,but I do not know how to start.

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General :: Change Case Of A String (BASH Scripting)?

Jul 9, 2010

Is there any inbuilt functionality in Unix shell script so that i can able to convert lower case string input to an upper case? I dont want to use high level languages like java,python or perl for doing the job.

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General :: Pull String From A File Into A Variable Using Bash

Aug 6, 2011

I have a file (.tmpfile) and inside it is a string which i only know part of, the rest being a random group of characters... I would like to know how to pull the whole string out of the file and into a variable.

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Ubuntu :: Bash Parameters With-c Switch ?

Mar 11, 2011

From the man page for bash...

Quote:

If the -c option is present, then commands are read from string. If there are arguments after the string, they are assigned to the positional parameters, starting with $0.

Code:

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Programming :: Bash Script Sed -r -i And -e Parameters?

May 3, 2011

I have a bash script where I am replacing a date with a variable

Code:
variable="date"
sed -r "s/([0-9][0-9])/([0-9][0-9])/([0-9][0-9][0-9][0-9])/$variable/g" /path/to/file.txt
I have googled but cant find any info on what the -r, or sometimes I have seen -i and -e, after the "sed" I googled "sed parameters"

r appears to output the replaced date, but not change the original file. Usually using -i will change an original file for me. Does anyone know what the -i, -e, -r are about? A link to an explanation would be good, as I have been unable to find one in my searches.

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General :: Bash: Substitute Parameter In A Quoted String - Stored In Another Variable

Jan 31, 2010

(variable substitution?)
(parameter expansion?)
Code:
run_repeatedly()
{
NUM=0
while [ <irrelevant stuff here> ]
[Code]....

run_repeatedly "programX -o "./messy/path/output-$NUM.txt"" The echo inside the loop prints "...-$NUM.txt"; obviously I'm aiming to have bash substitute the iteration number so that I end up with many output files not 1.

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General :: Split A String Into Array In Bash Return Wrong Size?

Mar 21, 2011

I'm trying to split a string, to later iterate using a for loop like

Code:
for (( i=0; i<5; i++))

But, my script returns an array with the size 1.

Here's the script:

Code:
aver=$(grep "avg" A.txt | awk '{ print $2 }');
a=$(echo $aver | tr " " "
");

[Code]....

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Ubuntu :: Pass Parameters To Bash Through Shellscript?

Mar 21, 2010

How do I pass file names as parameters to the shell through a script? I have installed 'wipe' from the repos and it is a shell based app. so I made a shellscript and put it in my script folder.

the normal usage of wipe is 'wipe -q /path/to/file' so if I were to make a shell script, right click on the file in question, and run the script on it, how to I permit the shell to wipe that file only, in other words pass it as a parameter. I think on windows it was the use of %1, such as. 'wipe -q %1' for example, which was simple enough. how to I achieve this with bash?

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Programming :: Passing Parameters From C Code To Bash Script

Apr 16, 2011

I get no print to stdout on screen from the C code.Does bash somehow block or mask it?I get print from bash. I get this error in the non-test bash script like: let "rdval = $rdstr"syntax error: operand expected (error token is " ")The let command prints rdval= but I presume this is due to the printf test statements getting in the way.I am getting no compile errors. Why does the C code not print the values specified?

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Programming :: Parsing Unflagged Parameters In Bash Script?

Apr 6, 2010

I've searched online and found many examples using getopts, but nothing that clearly explains it use, nor any examples of what I'm trying to do. I have a script named "process". It can take from 0 to 3 different options. I'd like to be able to handle these options regardless of the order that they are entered.

Syntax:
process [-v] [-d #] [-h|-?] [string]
-v = verbose mode on
-d # = how deep to do the process, expecting a number parameter
-h or -? = show command usage
string = only process lines containing the specified string

[Code]..

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General :: Running A Check In Bash Script?

Apr 3, 2011

so I wrote a small script that pretty much just takes in two numbers and counts from the first to the second, e.g.

unknown-hacker|544> count.sh 1 3
1
2
3

My problem is I want to make it so that if you input invalid parameters, such as non-numerical characters, more than 2 numbers, etc., you'd get an error message

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General :: BASH Scripts Check For Arguments

Mar 5, 2010

I know that $1 ... $n will set the argument to the values but what happened if I have many options in one scripts lets suppose.

I can run:
myscript -1stargument -2ndargument -3rdargument
or myscript -1stargument
or myscript -1stargument -3rdargument

In my scripts I have
if [ $1 = "-1stargument" -o $2 = "-2ndargument"] #for every instruction I need
fi

but is there any way to do:
if [ (any arguments or commands) = "(mydesired option ] ; then
(do this...)
fi