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Shell Programming and Scripting

Multiple Commands in PS

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# 1  
Old 08-22-2013
Multiple Commands in PS
I need to find in file where the record starts with "A,U,I,R" and their file name

Record will look like below

Code:
A|1|138||XXXX|XX|XX
U|2|XX|XX|XX|XX
R|3|EK|XX|XX|XX
D|4|TY|CC|CC|CC

Code:
find ./*.dat -exec egrep "^A|U|I|R" \; -exec cut -d'|' -f1,2 \; -exec sort -u {} /dev/null \;


But it does not return any values.
Last edited by Scott; 08-22-2013 at 01:03 PM.. Reason: Additional code tags; removed formatting within code tags
# 2  
Old 08-22-2013
The different -exec primaries are not piped into each other.

You can either pipe find into cut and sort or use a single -exec and have it run a simple shell script.

Regards,
Alister
# 3  
Old 08-22-2013
i put your data in fileA.dat:

Code:
$ find . -name '*.dat' -exec sh -c 'grep -He "^[AUIR]" "$@" | cut -d"|" -f1,2 | sort -u' _ {} +
./fileA.dat:A|1
./fileA.dat:R|3
./fileA.dat:U|2

You probably only need find if you're recursively searching subdirectories.

Code:
$ grep -e "^[AUIR]" *.dat | cut -d"|" -f1,2 | sort -u
fileA.dat:A|1
fileA.dat:R|3
fileA.dat:U|2
fileB.dat:A|1
fileB.dat:R|3
fileB.dat:U|2

This User Gave Thanks to neutronscott For This Post:
Niranjancse
# 4  
Old 08-22-2013
Great!!!

Could you please explain this part
Code:
'grep -He "^[AUIR]" "$@"

and need of this
Code:
_ {} +

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