awk doubt

[Vogra]

Hi All!
how can I get the file name without extention from the list of files?
ex. I have the name: 24145123.sc
that 24145123 is the string I need.
thanx.

[S.K. Chan]

# echo 24145123.sc | awk -F. '{print $1}'

[hpuxrox · Accepted solution]

# ls | grep ".sc" | awk -F. '{print $1}'

[Sukant Naik]

grep *.sc | awk -F. '{print $1}'

Just my two cents.
-Sukant

[Sachin Patel]

Another way using cut.

ls |grep *.sc |cut -d"." -f1

Sachin

[MANOJ SRIVASTAVA]

Hi Claudio

there is a simpler way if that is waht you are trying to do

echo 24145123.sc | cut -c 1-8 will give you the file name w/o the externsion.


Manoj Srivastava

[hpuxrox]

Claudio Lima,

Be carefull with cut -c. Cut -c does not have the ability to do padding like awk can. I think awk is your best chose for what you are trying to do.

-Yates

[Rodney Hills]

If you running a shell script under "ksh", you can use the parameter substitution as follows-

withext="12332234.sc"
without=${withext%.*}
echo $without
12332234

-- Rod Hills

[Darrell Allen]

Hi Claudio,

Let's get a little weird...

echo sc.sc.sckjs.scsc.scs.sc | awk '{FS="\.sc$"} {print $1}'

This allows for multiple "dots" in the filename as well as multiple occurances or ".sc". Not to mention that the "$" anchors
".sc" to the end of the filename and the "\" keeps the "." from being expanded as a wildcard.

Rodney's tip works well! It's much simpler than this.

Darrell

[John Carr_2]

Hi

and an alternative to awk

echo 24145123.sc | sed -e 's/.sc//g'

cheers
John

[James R. Ferguson]

Hi:

I can't resist...Rodney's solution is the fastest, since the shell is doing the work rather than spawning another process.

Another 'awk' variation, which would be useful if you had multiple fields (columns) each with "."s might look like this:

# echo "abc.123 def.456 ghi.789"|awk '{split($3,a,".");print a[1]}'

In the above example, "ghi" (the first part of the third field) would be returned.

Regards!

...JRF...

[Graham Cameron_1]

You don't need awk.
There is a command exactly for this:
basename 24145123.sc .sc
(only works if you know the extension, ie '.sc' though)

Graham

[Darrell Allen]

Good one Graham! I had thought about basename but obviously didn't read the man page very closely. Duh! Learned something again!

This points out how often there are other uses for UNIX commands other than the one(s) we typically use. Also the value of these forums.

N/A please.

Darrell

[Charles Stepp]

I like sed:

echo "this.that" | sed 's/\..*//'