awk - ignore metacharacters, search shell variables Post: 302657591

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Using shell variables In awk

Oh its not my day for syntax... cat gzipsize.txt | awk '{print "echo",$1,$2} > master.txt I have read a lot about the awk -v but haven't been able to get it to work. I have a variable in my script and I'm looking just to push it into the awk after the $2 (or anywhere would do)!!! Every...

2. Shell Programming and Scripting

Modify shell variables with AWK

Dear Folks, I have a command output something like: And I want to store PIN0 and SIG0 in two shell variables, now I do a double awk: PIN=`gsmctl -d /dev/ttyS0 pin sig | awk '/PIN0/ { print $2}'` SIG=`gsmctl -d /dev/ttyS0 pin sig | awk '/SIG0/ { print $2}'` It's possible to...

3. Shell Programming and Scripting

Awk, shell variables

Hello, I've been trying to figure out how to use variables inside the AWK command and use it back in the korn shell sript. in my script I have lots of awk commands like this grep Listen /etc/ssh/sshd_config | \ awk '{ if ($2 == "22" ) print "OK"; else print "not OK" }' ...

4. Shell Programming and Scripting

search and replace using awk with variables

Hi, I have been trying to use awk with variables that needs to search for a pattern and replace it with another pattern, the patterns are supplied in a variable. I have tried several different ways without success and hope that someone can help me. Here are the details echo $UPC 07007457809...

5. UNIX for Advanced & Expert Users

use of variables in awk to search for pattern from a file

Hi, I need to extract all the content between two strings stored in two variables "startstring" and "endstring" startstring=hello enstring=world #notworking awk '/$startstring/, $NF ~ /$endstring/ ' file > file2 The above code is not working with variables. It works when actual string...

6. Shell Programming and Scripting

awk - take variables out to shell

Hi, How could we take the value of awk variables out to shell? I know the following methods 1. awk '{print $1}' < file | read a echo $a 2. a=`awk '{print $1}' < file` echo $a Please let me know if there are any other methods. Also, how do we take more than 1 variable value...

7. Shell Programming and Scripting

escaping metacharacters in paths for a shell command

I have a file which contains a list of paths separated by a new line character. e.g /some/path/to/a/file.png /some/path to/another/file.jpeg /some path/to yet/another/file Notice that these paths may contain metacharacters, the spaces for example are also not escaped. If I wanted...

8. Shell Programming and Scripting

awk search/replace specific field, using variables for regexp & subsitution then overwrite file

Hello, I'm trying the solve the following problem. I have a file which I intend to use as a csv called master.csv The columns are separated by commas. I want to change the text on a specific row in either column 3,4,5 or 6 from xxx to yyy depending upon if column 1 matches a specified pattern....

9. UNIX for Dummies Questions & Answers

Command line not recognizing metacharacters in awk

Hello, I'm new to command line coding (and coding in general) and have run into a problem. I'm using awk to perform a global find and replace in a text file in the Terminal provided by Mac. Here is a sample of my textfile where the fields are separated by tabs. 1Ps 1,1 VWB/(J VWB VWB...

10. Shell Programming and Scripting

Using Shell variables in awk

Hi All, I have a file which I am reading and looking for "EXIT" statement. I want to insert ":JCWPROD" after each EXIT statement only if ":JCWPROD" doesn't exist. Here is the sample file : EXIT Testing EXIT tesing123 EXIT Desired file : EXIT :JCWPROD Testing EXIT :JCWPROD...

LEARN ABOUT LINUX

shtool-path

SHTOOL-PATH.TMP(1)					      GNU Portable Shell Tool						SHTOOL-PATH.TMP(1)

NAME

       shtool-path - GNU shtool command dealing with shell path variables

SYNOPSIS

       shtool path [-s|--suppress] [-r|--reverse] [-d|--dirname] [-b|--basename] [-m|--magic] [-p|--path path] str [str ...]

DESCRIPTION

       This command deals with shell $PATH variables. It can find a program through one or more filenames given by one or more str arguments.  It
       prints the absolute filesystem path to the program displayed on "stdout" plus an exit code of 0 if it was really found.

OPTIONS

       The following command line options are available.

       -s, --suppress
	   Supress output. Useful to only test whether a program exists with the help of the return code.

       -r, --reverse
	   Transform a forward path to a subdirectory into a reverse path.

       -d, --dirname
	   Output the directory name of str.

       -b, --basename
	   Output the base name of str.

       -m, --magic
	   Enable advanced magic search for ""perl"" and ""cpp"".

       -p, --path path
	   Search in path. Default is to search in $PATH.

EXAMPLE

	#   shell script
	awk=`shtool path -p "${PATH}:." gawk nawk awk`
	perl=`shtool path -m perl`
	cpp=`shtool path -m cpp`
	revpath=`shtool path -r path/to/subdir`

HISTORY

       The GNU shtool path command was originally written by Ralf S.  Engelschall <rse@engelschall.com> in 1998 for Apache. It was later taken
       over into GNU shtool.

SEE ALSO

       shtool(1), which(1).

18-Jul-2008							   shtool 2.0.8 						SHTOOL-PATH.TMP(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Using shell variables In awk

Discussion started by: nortypig

2. Shell Programming and Scripting

Modify shell variables with AWK

Discussion started by: Santi

3. Shell Programming and Scripting

Awk, shell variables

Discussion started by: mirusko

4. Shell Programming and Scripting

search and replace using awk with variables

Discussion started by: jerardfjay