Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Extract values based on parameters passing in arguments
Top Forums UNIX for Beginners Questions & Answers Extract values based on parameters passing in arguments Post 303036254 by Don Cragun on Thursday 20th of June 2019 10:02:28 PM
Old 06-20-2019
Making lots of wild assumptions about what operating system (and, therefore what type of shell is installed as sh, one might try something like the following:
Code:
#!/bin/sh
IAm=${0##*/}

if [ $# -lt 2 ]
then	printf 'Usage: %s low high [low high]...\n' "$IAm" >&2
	exit 1
fi
list=$1-$2
shift 2
while [ $# -ge 2 ]
do	list=$list,$1-$2
	shift 2
done
cut -c "$list" file_name >> file_new

Obviously, you should add a check to verify that an odd number of arguments were not given and you might want to add an output pathname as a parameter instead of always appending to the file named file_new, but this should get you started.
This User Gave Thanks to Don Cragun For This Post:
Jairaj
 

10 More Discussions You Might Find Interesting

1. Answers to Frequently Asked Questions

Passing variables/arguments/parameters to commands

A good place to start is simple variable passing.... Passing variables from one script to another The next level is passing a variable into a more complex command such as using a variable in a sed command. There are some simple quoting techniques that are very general. These are mentioned... (0 Replies)
Discussion started by: Perderabo
0 Replies

2. Programming

Passing Parameters and getting values back from a c program to Shell script

I am having a shell script which has to be called from a C program. I have to pass two parameters to this script. HOw can I do that? eg: int main() { char st1; char str2; // call a shell script call_sh(str1,str2) where call_sh is the name of the shell script. then i need to get the return... (5 Replies)
Discussion started by: Rajeshsu
5 Replies

3. Shell Programming and Scripting

passing more than 9 parameters

hi, i am passing around 14 parameters for a script a=$1 b=$2 c=$3 d=$4 e=$5 f=$6 g=$7 h=$8 i=\"${9}\" shift j=\"${1}\" still for j it is displaying the 1st parameter value..how to make it take the 10th parameter (2 Replies)
Discussion started by: dnat
2 Replies

4. Shell Programming and Scripting

extract from a file based on values in another file

Hello, I have two files that have delimited entries as shown below. I would like to use either Perl or Shell script to extract all the rows in File 1 corresponding to values in File 2 and output it to another File. File 1 ------- 1 36 24 Object1 2 45 36 Object2 3 96 ... (1 Reply)
Discussion started by: Gussifinknottle
1 Replies

5. Shell Programming and Scripting

tar cmd how many arguments into parameters of filenames

Hi I would like to use tar cmd in my script. I have a variable with filenames, e.g. 1000 records and I would like to paste its values into tar cmd. For this example I used three elements variable strings. strings="file1.txt file2.txt file3.txt" `tar cf file1.tar $strings` Whether... (1 Reply)
Discussion started by: presul
1 Replies

6. Shell Programming and Scripting

Optional Parameters/arguments while executing a script.

Hello, I have a shell script "Test.ksh" and I need to pass 8 parameters/arguments while executing the script ./Test.ksh 1 2 3 4 5 6 7 8 Out of these I want first 3 to be compulsory and rest 5 to be optional. Can you suggest the way to do this like and also how to pass these optional... (3 Replies)
Discussion started by: indrajit_u
3 Replies

7. Shell Programming and Scripting

Reading a string and passing passing arguments to a while loop

I have an for loop that reads the following file cat param.cfg val1:env1:opt1 val2:env2:opt2 val3:env3:opt3 val4:env4:opt4 . . The for loop extracts the each line of the file so that at any one point, the value of i is val1:env1:opt1 etc... I would like to extract each... (19 Replies)
Discussion started by: goddevil
19 Replies

8. Shell Programming and Scripting

Shell Script to Dynamically Extract file content based on Parameters from a pdf file

Hi Guru's, I am new to shell scripting. I have a unique requirement: The system generates a single pdf(/tmp/ABC.pdf) file with Invoices for Multiple Customers, the format is something like this: Page1 >> Customer 1 >>Invoice1 + invoice 2 >> Page1 end Page2 >> Customer 2 >>Invoice 3 + Invoice 4... (3 Replies)
Discussion started by: DIps
3 Replies

9. Shell Programming and Scripting

Extract and exclude rows based on duplicate values

Hello I have a file like this: > cat examplefile ghi|NN603762|eee mno|NN607265|ttt pqr|NN613879|yyy stu|NN615002|uuu jkl|NN607265|rrr vwx|NN615002|iii yzA|NN618555|ooo def|NN190486|www BCD|NN628717|ppp abc|NN190486|qqq EFG|NN628717|aaa HIJ|NN628717|sss > I can sort the file by... (5 Replies)
Discussion started by: CHoggarth
5 Replies

10. UNIX for Beginners Questions & Answers

Positional Parameters Arguments/Variables when using dot (.)

Hi, Is there a special positional variables for when using the dot (.)? Scripts are as below: $: head -100 x.ksh /tmp/y.ksh ==> x.ksh <== #!/bin/ksh # . /tmp/y.ksh 1234 abcd echo "yvar1 = $yvar1" echo "yvar2 = $yvar2" ==> /tmp/y.ksh <== #!/bin/ksh (2 Replies)
Discussion started by: newbie_01
2 Replies

LEARN ABOUT DEBIAN

aa-exec

AA-EXEC(8)							     AppArmor								AA-EXEC(8)

NAME

       aa-exec - confine a program with the specified AppArmor profile

SYNOPSIS

       aa-exec [options] [--] [<command> ...]

DESCRIPTION

       aa-exec is used to launch a program confined by the specified profile and or namespace.	If both a profile and namespace are specified
       command will be confined by profile in the new policy namespace.  If only a namespace is specified, the profile name of the current
       confinement will be used.  If neither a profile or namespace is specified command will be run using standard profile attachment (ie. as if
       run without the aa-exec command).

       If the arguments are to be pasted to the <command> being invoked by aa-exec then -- should be used to separate aa-exec arguments from the
       command.
	 aa-exec -p profile1 -- ls -l

OPTIONS aa-exec accepts the following arguments:
       -p PROFILE, --profile=PROFILE
	   confine <command> with PROFILE. If the PROFILE is not specified use the current profile name (likely unconfined).

       -n NAMESPACE, --namespace=NAMESPACE
	   use profiles in NAMESPACE.  This will result in confinement transitioning to using the new profile namespace.

       -f FILE, --file=FILE
	   a file or directory containing profiles to load before confining the program.

       -i, --immediate
	   transition to PROFILE before doing executing <command>.  This subjects the running of <command> to the exec transition rules of the
	   current profile.

       -v, --verbose
	   show commands being performed

       -d, --debug
	   show commands and error codes

       --  Signal the end of options and disables further option processing. Any arguments after the -- are treated as arguments of the command.
	   This is useful when passing arguments to the <command> being invoked by aa-exec.

BUGS

       If you find any bugs, please report them at <http://https://bugs.launchpad.net/apparmor/+filebug>.

SEE ALSO

       aa-stack(8), aa-namespace(8), apparmor(7), apparmor.d(5), aa_change_profile(3), aa_change_onexec(3) and <http://wiki.apparmor.net>.

AppArmor 2.7.103						    2012-06-28								AA-EXEC(8)
All times are GMT -4. The time now is 05:26 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy