finding length of a field in shell

Original Message

Name: roopa_arjunan
Date: August 3, 2005 at 00:47:50 Pacific
Subject: finding length of a field in shell
OS: unix
CPU/Ram: unknown

Comment:

hi,
how to find whether a field is empty
for eg:
this|is|on| |line| |
in this how to find the length of fourth field.
thank you.
Roopa.A

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Response Number 1

Name: David Perry
Date: August 3, 2005 at 05:44:48 Pacific
Subject: finding length of a field in shell

Reply: (edit)

echo "this|is|on| |line| |" | awk -F"|" '{ print length($4)}'

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Response Number 2

Name: Jim Boothe
Date: August 3, 2005 at 06:54:11 Pacific
Subject: finding length of a field in shell

Reply: (edit)

And just for variety:
echo "this|is|on| |line| |" |
IFS=\| read f1 f2 f3 f4 rem
echo "length of field 4: ${#f4}"
1

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