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Passinng specific file extension to while loop in ksh

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# 1  
Old 12-29-2012
Passinng specific file extension to while loop in ksh
hello,

i have the below while loop wherein i am passig list of filenames to be scped. this is in unix ksh -

filenamelist.txt has list of files names, including .dat and .txt files

but i want to pass only the .txt filenames to the while loop so that only .txt files gets scped.

how can i do that in the below while loop

Code:
while read rname
do
  scp $scp_user@$scp_server:${rname} /a/b/c/
done < filenamelist.txt

Moderator's Comments:
Mod Comment Please use code tags next time for your code and data.
Last edited by Franklin52; 12-29-2012 at 08:10 AM..
# 2  
Old 12-29-2012
Do you want to scp this whole file
Code:
filenamelist.txt

?

what is inside the file pls print here

---------- Post updated at 10:10 AM ---------- Previous update was at 10:06 AM ----------

Code:
while read rname
do
a=`echo $rname`
scp $scp_user@$scp_server:${a} /a/b/c/
done < filenamelist.txt

also try removing flower barcakets
# 3  
Old 12-29-2012
Quote:
Originally Posted by billpeter3010
hello,

i have the below while loop wherein i am passig list of filenames to be scped. this is in unix ksh -

filenamelist.txt has list of files names, including .dat and .txt files

but i want to pass only the .txt filenames to the while loop so that only .txt files gets scped.

how can i do that in the below while loop

while read rname
do
scp $scp_user@$scp_server:${rname} /a/b/c/
done < filenamelist.txt
Try:
Code:
grep '.txt' filenamelist.txt | while read rname
do
    scp $scp_user@$scp_server:"$rname" /a/b/c/
done

In this context, $rname and ${rname} expand to the same value. If any of the filenames in filenamelist.txt contain a space or a tab character, a character that could be expanded in pathname expansion, or characters that could be interpreted as a command substitution or arithmetic expansion by ksh; you need the double quotes.
# 4  
Old 12-29-2012
Code:
while read rname
do
ext=`echo $rname|awk -F"." '{print $NF}'`
if [[ "$ext" == "txt" ]]
then
scp $scp_user@$scp_server:${rname} /a/b/c/
fi
done < filenamelist.txt


Regards,
Vijay
Last edited by Scott; 12-30-2012 at 01:43 AM.. Reason: Franklin52: Code tags; Scott: Removed link
# 5  
Old 12-29-2012
Code:
#!/bin/sh
cat filenamelist.txt | grep '.txt' >> newfile.txt
while read rname
do
a=`echo $rname`
scp $scp_user@$scp_server:${a} /a/b/c/
done < newfile.txt

input
Code:
pin@vus520[new]$ cat filenamelist.txt
helo.txt
hi.dat
how.txt
me.txt
you.dat

Code:
helo.txt
how.txt
me.txt

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