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Full Discussion: Extract string in shell script
Top Forums Shell Programming and Scripting Extract string in shell script Post 302536155 by ctsgnb on Monday 4th of July 2011 08:41:28 AM
Old 07-04-2011
Code:
echo '/u/asak/DATE/TEST_LOGS/20110704_033429_test11_w_2_120/HDD/test11_w_2_12/hd-120' | nawk -F/ '{x=$(NF-3);sub("[^_]*_[^_]*_","",x);$0=x}1'

This second one will remove everything that is before "test" so it should work with your second example as well (if you just want to keep the test* pattern)

Code:
echo '/u/asak/DATE/TEST_LOGS/20110704_033429_test11_w_2_120/HDD/test11_w_2_12/hd-120' | nawk -F/ '{x=$(NF-3);sub(".*test","test",x);$0=x}1'

Depending on which behaviour you need :
Code:
# echo '/u/asak/DATE/TEST_LOGS/20110704_033429_2_shtest11_w_2_120/HDD/test11_w_2_12/hd-120' | nawk -F/ '{x=$(NF-3);sub(".*test","test",x);$0=x}1'
test11_w_2_120
# echo '/u/asak/DATE/TEST_LOGS/20110704_033429_2_shtest11_w_2_120/HDD/test11_w_2_12/hd-120' | nawk -F/ '{x=$(NF-3);sub("[^_]*_[^_]*_",z,x);$0=x}1'
2_shtest11_w_2_120

If the depth of your 20110704_033429_2_shtest11_w_2_120 directory doesn't vary, then you can replace my $(NF-3) with $6
Last edited by ctsgnb; 07-04-2011 at 10:10 AM..
 

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LEARN ABOUT ULTRIX

ucblinks

ucblinks(1B)					     SunOS/BSD Compatibility Package Commands					      ucblinks(1B)

NAME

       ucblinks - adds /dev entries to give SunOS 4.x compatible names to SunOS 5.x devices

SYNOPSIS

       /usr/ucb/ucblinks [-e rulebase] [-r rootdir]

DESCRIPTION

       ucblinks  creates symbolic links under the /dev directory for devices whose SunOS 5.x names differ from their SunOS 4.x names. Where possi-
       ble, these symbolic links point to the device's SunOS 5.x name rather than to the actual /devices entry.

       ucblinks does not remove unneeded compatibility links; these must be removed by hand.

       ucblinks should be called each time the system is reconfiguration-booted, after any new SunOS 5.x links that are needed have been  created,
       since the reconfiguration may have resulted in more compatibility names being needed.

       In  releases prior to SunOS 5.4, ucblinks used a  nawk rule-base to construct the SunOS 4.x compatible names. ucblinks no longer uses  nawk
       for the default operation, although  nawk rule-bases can still be specifed with the -e option.  The  nawk rule-base equivalent to the SunOS
       5.4 default operation can be found in /usr/ucblib/ucblinks.awk.

OPTIONS

       -e rulebase     Specify rulebase as the file containing nawk(1) pattern-action statements.

       -r rootdir      Specify rootdir as the directory under which dev and devices will be found, rather than the standard root directory /.

FILES

       /usr/ucblib/ucblinks.awk        sample rule-base for compatibility links

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWscpu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       devlinks(1M), disks(1M), ports(1M), tapes(1M), attributes(5)

SunOS 5.10							    13 Apr 1994 						      ucblinks(1B)
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