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Full Discussion: Problem using grep in bash script
Top Forums Shell Programming and Scripting Problem using grep in bash script Post 302565251 by otheus on Monday 17th of October 2011 11:19:49 AM
Old 10-17-2011
Hrm. I dont understand why the bash script thinks wc is an option of grep, but really, this is the wrong approach:

If the file is sorted, you can do:
Code:
uniq -c

If it's not sorted, you can sort it just with sort. If you run out of memory, you can split the file into n files, sort each individually and then merge them with sort (see the man page for the merge option). Then the resulting file will be sorted and you just use the uniq command, above.

But lets say you just want to count the number of lines matching a particular string. Try:
Code:
grep -Fc  string filename

The -F ensures your string wont be interpreted as a regular expression pattern.
This User Gave Thanks to otheus For This Post:
errcricket
 

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LEARN ABOUT LINUX

devscripts.conf

DEVSCRIPTS.CONF(5)                                              File Formats Manual                                             DEVSCRIPTS.CONF(5)

NAME

       devscripts.conf - configuration file for the devscripts package

DESCRIPTION

       The  devscripts  package provides a collection of scripts which may be of use to Debian developers and others wishing to build Debian pack-
       ages.  Many of these have options which can be configured on a system-wide and per-user basis.

       Every script in the devscripts package which makes use of values from these configuration files describes the specific settings  recognised
       in its own manpage.  (For a list of the scripts, either see /usr/share/doc/devscripts/README.gz or look at the output of dpkg -L devscripts
       | grep /usr/bin.)

       The two configuration files are /etc/devscripts.conf for system-wide defaults and ~/.devscripts for per-user settings.   They  are  written
       with  bash(1)  syntax, but should only have comments and simple variable assignments in them; they are both sourced (if present) by many of
       the devscripts scripts.  Variables corresponding to simple switches should have one of the values yes and no; any other setting is regarded
       as equivalent to the default setting.

       All  variable  names  are  written  in  uppercase, and begin with the script name.  Package-wide variables begin with "DEVSCRIPTS", and are
       listed below, as well as in the relevant manpages.

       For a list of  all  of  the  available  options  variables,  along  with  their  default  settings,  see  the  example  configuration  file
       /usr/share/doc/devscripts/devscripts.conf.ex.   This  is  copied  to  /etc/devscripts.conf  when the devscripts package is first installed.
       Information about configuration options introduced in newer versions of the package will be appended to /etc/devscripts.conf when the pack-
       age is upgraded.

       Every script which reads the configuration files can be forced to ignore them by using --no-conf as the first command-line option.

PACKAGE-WIDE VARIABLES
       The currently recognised package-wide variables are:

       DEVSCRIPTS_CHECK_DIRNAME_LEVEL, DEVSCRIPTS_CHECK_DIRNAME_REGEX
              These  variables  control  scripts  which change directory to find a debian/changelog file or suchlike, and some other miscellaneous
              cases.  In order to prevent unwanted, even possibly dangerous, behaviour, these variables control when actions  will  be  performed.
              The scripts which currently make use of these variables are: debc, debchange/dch, debclean, debi, debrelease, debuild and uscan, but
              this list may change with time (and I may not remember to update this manpage).  Please see the manpages of individual  scripts  for
              details of the specific behaviour for each script.

SEE ALSO

       devscripts(1) and /usr/share/doc/devscripts/README.gz.

AUTHOR

       This manpage was written for the devscripts package by the package maintainer Julian Gilbey <jdg@debian.org>.

DEBIAN                                                           Debian Utilities                                               DEVSCRIPTS.CONF(5)
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