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Full Discussion: Substring using cut/awk/sed
Top Forums Shell Programming and Scripting Substring using cut/awk/sed Post 302464385 by ygemici on Wednesday 20th of October 2010 03:47:33 AM
Old 10-20-2010
Quote:
Originally Posted by sumoka
sorry for the late response .

Please ignore the first two o/p s .

1. In the 3rd o/p , even though I have selected first two matching occurrances it is selecting 3 characters

2. If I reduce one more dot for second string it selects 4 character for 1st field & equal number of characters get clipped from the filename in o/p.

can you explain how this happens ?

Thanks ,
sumoka.
Because your coding has contains some mistakes..

Code:
echo MPMTR20100706043000.txt|sed -n -e 's/\(..\)\(..\)\([0-9]\{8\}\)/\1,\2,\3,&/p'
MPM,TR,20100706,PMTR20100706043000.txt

your string is "two chars + two chars + 8 numbers"
but after the second "two chars" there is a char before the 8 numbers

so your code is must be is below

Code:
# echo MPMTR20100706043000.txt|sed -n -e 's/\(..\)\(..\).\([0-9]\{8\}\)/\1,\2,\3,&/p'
MP,MT,20100706,MPMTR20100706043000.txt

 

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set_color(1)							       fish							      set_color(1)

NAME

       set_color - set_color - set the terminal color

set_color - set the terminal color
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