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Search a file with keywords

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# 1  
Old 02-17-2010
Search a file with keywords
Hi All

I have a file of format
Code:
[EM]
asdf
asf
first
sec

[US]
endi
asdk
rt

[SKP]
123
ferf
dfg
ijglkp
jhgddd

I need help writing an expression that if the file is searched with US as keyword it should return
endi asdk rt
if SKP is searched it should return
123 ferf dfg ijglkp jhgddd

Thank you for help
Abdul
# 2  
Old 02-18-2010
The first argument to the following script is the keyword (EM, US, SKP ... without brackets). The second argument is an optional filename. If provided, the file's contents are searched. If not provided, standard input is read.

Code:
#!/bin/sh

awk 'i{if (!NF) exit; print} /\['"$1"'\]/{i=1}' "${2:--}" | paste -d' ' -s -

# 3  
Old 03-10-2010
search file with keywords
Thanks for reply I am trying to get the output in variable like below , but its throwing an error .

Code:
mail_list=awk 'i{if (!NF) exit; print} /\['"$1"'\]/{i=1}' "${2:--}" | paste -d' ' -s -
echo $mail_list

# 4  
Old 03-10-2010
Wow ... talk about a blast from the past Smilie

Try:
Code:
mail_list=$(awk 'i{if (!NF) exit; print} /\['"$1"'\]/{i=1}' "${2:--}" | paste -d' ' -s -)

If you would like to know more about how that works, read about command substitution @ Shell Command Language

Regards,
Alister
# 5  
Old 03-10-2010
Quote:
Originally Posted by mailabdulbari

Code:
mail_list=$(awk 'i{if (!NF) exit; print} /\['"$1"'\]/{i=1}' "${2:--}" | paste -d' ' -s -)

Code:
mail_list=$(awk 'i{if (!NF) exit; printf $0 FS} /\['"$1"'\]/{i=1}' "${2:--}" )

# 6  
Old 03-10-2010
Thanks guys
# 7  
Old 03-10-2010
Code:
awk -v RS="" -v str="US"  '  $1 ~ str { OFS=" "; $1=""; print } '  file
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