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Full Discussion: Bash script to find comments in file
Top Forums Shell Programming and Scripting Bash script to find comments in file Post 302925883 by RavinderSingh13 on Thursday 20th of November 2014 01:07:31 AM
Old 11-20-2014
Quote:
Originally Posted by ksmarine1980
As I stated in a previous thread - I'm a newbie to Unix/Linux and programming. I'm trying to learn the basics on my own using a couple books and the exercises provided inside.

I've reached an exercise that has me stumped. I need to write a bash script that will will read in a file and print the line number and script line of all lines including comments. Normally this wouldn't be difficult, but I'm not supposed to use sed, awk, grep, etc (only Bash). I have the skeleton in place, but I'm missing how to pull only the comments and display the line number. Any help would be appreciated.

Code:
#!bin/bash
 
while read line
do
echo $line
done

Hello ksmarine1980,

Following may help you in same if we need to print line number along with line's content.

Code:
i- awk '{print NR OFS $0}' Input_file
ii- cat -n Input_file
iii- while read line
    do
    let "i = i + 1"
    echo $i " " $line
    done < "Input_file"


Thanks,
R. Singh
This User Gave Thanks to RavinderSingh13 For This Post:
ksmarine1980
 

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LEARN ABOUT DEBIAN

logprof.conf

LOGPROF.CONF(5) 						     AppArmor							   LOGPROF.CONF(5)

NAME

       logprof.conf - configuration file for expert options that modify the behavior of the AppArmor aa-logprof(1) program.

DESCRIPTION

       The aa-logprof(1) program can be configured to have certain default behavior by the contents of logprof.conf.

       The [qualifiers] section lists specific programs that should have a subset of the full ix/px/ux list when asking what mode to execute it
       using.

       Since creating a separate profile for /bin/bash is dangerous, we can specify that for /bin/bash, only (I)nherit, (U)nconstrained, and
       (D)eny should be allowed options and only those will show up in the prompt when we're asking about adding that to a profile.

       Likewise, if someone currently exec's /bin/mount in ix or px mode, things won't work, so we can provide only (U)nconstrained and (D)eny as
       options.

       And certain apps like grep, awk, sed, cp, and mkdir should always inherit the parent profile rather than having their own profile or
       running unconfined, so for them we can specify that only (I)nherit and (D)eny are the allowed options.

       Any programs that are not listed in the qualifiers section get the full (I)nherit / (P)rofile / (U)nconstrained / (D)eny option set.

       If the user is doing something tricky and wants different behavior, they can tweak or remove the corresponding line in the conf file.

       The [defaulthat] section lists changehat-aware programs and what hat aa-logprof(1) will collapse the entries to for that program if the
       user specifies that the access should be allowed, but should not have it's own hat.

       The [globs] section allows modification of the logprof rule engine with respect to globbing suggestions that the user will be prompted
       with.

       The format of each line is-- "<perl glob> = <apparmor glob>".

       When aa-logprof(1) asks about a specific path, if the perl glob matches the path, it replaces the part of the path that matched with the
       corresponding apparmor glob and adds it to the list of globbing suggestions.

       Lines starting with # are comments and are ignored.

EXAMPLE

	 [qualifiers]
	   # things will very likely be painfully broken if bash has it's own profile
	   /bin/bash  = iu

	   # mount doesn't work if it's confined
	   /bin/mount = u

	   # these helper utilities should inherit the parent profile and
	   # shouldn't have their own profiles
	   /bin/awk   = i
	   /bin/grep  = i
	   /bin/sed   = i

	 [defaulthat]
	   /usr/sbin/sshd	    = EXEC
	   /usr/sbin/httpd2	    = DEFAULT_URI
	   /usr/sbin/httpd2-prefork = DEFAULT_URI

	 [globs]
	   # /foo/bar/lib/libbaz.so -> /foo/bar/lib/lib*
	   /lib/lib[^/]+so[^/]*$  = /lib/lib*so*

	   # strip kernel version numbers from kernel module accesses
	   ^/lib/modules/[^/]+/   = /lib/modules/*/

	   # strip pid numbers from /proc accesses
	   ^/proc/d+/		    = /proc/*/

BUGS

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

SEE ALSO

       apparmor(7), apparmor.d(5), aa-enforce(1), aa-complain(1), aa-disable(1), aa_change_hat(2), aa-logprof(1), aa-genprof(1), and
       <http://wiki.apparmor.net>.

AppArmor 2.7.103						    2012-06-28							   LOGPROF.CONF(5)
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