xargs command

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# 1  
Old 06-09-2011
xargs command


The command below does not work. what I am doing wrong ?
For some reason second part of the xargs command is not does what I expect
If I get this working I intend to use it for multiple file rename later.
echo archDP105144_1_702159963.dbf|xargs -i cp {} `echo {}|awk '{sub(/DP1/,"TML");print}'`

with set -x
echo archDP105144_1_702159963.dbf|xargs -i cp {} `echo {}|awk '{sub(/DP1/,"TML");print}'`
++ echo '{}'
+ echo archDP105144_1_702159963.dbf
++ awk '{sub(/DP1/,"TML");print}'
+ xargs -i cp '{}' '{}'


Last edited by Franklin52; 06-09-2011 at 04:33 AM.. Reason: Please use code tags
# 2  
Old 06-09-2011
xargs -I

# 3  
Old 06-09-2011
Thanks for prompt reply. But it does not work for me. Did you try it in your environment? I tried on linux BASH and Sun KSH
echo archDP105144_1_702159963.dbf|xargs -I cp {} `echo {}|awk '{sub(/DP1/,"TML");print }'`
++ echo '{}'
+ echo archDP105144_1_702159963.dbf
++ awk '{sub(/DP1/,"TML");print }'
+ xargs -I cp '{}' '{}'
xargs: {}: No such file or directory

Last edited by Franklin52; 06-09-2011 at 04:33 AM.. Reason: Please use code tags
# 4  
Old 06-09-2011
why can't you use simple for loop?

for file in *DP1*.dbf ; do
cp ${file} `echo ${file}|awk '{sub(/DP1/,"TML");print}'`

# 5  
Old 06-09-2011
echo archDP105144_1_702159963.dbf|xargs -i cp {} `echo archDP105144_1_702159963.dbf |awk '{sub(/DP1/,"TML");print}'`

# 6  
Old 06-09-2011
Originally Posted by michaelrozar17
echo archDP105144_1_702159963.dbf|xargs -i cp {} `echo archDP105144_1_702159963.dbf |awk '{sub(/DP1/,"TML");print}'`

This won't help him in renaming multiple files.
# 7  
Old 06-09-2011
for i in *D1P*.dbf
cp $i "${i%%D1P*}TML${i##*D1P}"

Note that my code assume the D1P pattern does not occure more than once per filename

$ ls -1 *D1P*
$ for i in *D1P*
> do
> echo cp $i "${i%%D1P*}TML${i##*D1P}"
> done
cp archD1P_10_whatever.dbf archTML_10_whatever.dbf
cp archD1P_1_whatever.dbf archTML_1_whatever.dbf
cp archD1P_2_whatever.dbf archTML_2_whatever.dbf
cp archD1P_3_whatever.dbf archTML_3_whatever.dbf
cp archD1P_4_whatever.dbf archTML_4_whatever.dbf
cp archD1P_5_whatever.dbf archTML_5_whatever.dbf
cp archD1P_6_whatever.dbf archTML_6_whatever.dbf
cp archD1P_7_whatever.dbf archTML_7_whatever.dbf
cp archD1P_8_whatever.dbf archTML_8_whatever.dbf
cp archD1P_9_whatever.dbf archTML_9_whatever.dbf

(here i put a "echo" just to display the command so that you can check it behaves has expected, if ok, then just remove the 'echo' and rerun the 'for' loop with the real cp command

Last edited by ctsgnb; 06-09-2011 at 06:01 AM..
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