korn shell script - using wildcard in file search

[bcdixit]

I have a file that is generated in the following format fb.d.v6.fbp.200606131452.gz i.e. the current TIME is also attached to YYYYMMDD

my question is how do i build a IF condition in my ksh script so that I can get something like this below
if [[ -s $IN_DIR_Frd/fb.d.v6.fbp.${DT}*.gz ]]

the ${DT} is basically a user inputed date in the YYYYMMDD format
basically I want it to ignore the TIME value after the date?

any help would be highly appreciated

 

[PHV]

Perhaps this ?
if [ -s $IN_DIR_Frd/fb.d.v6.fbp.${DT}[012][0-9][0-5][0-9].gz ]

Hope This Helps, PH.
Want to get great answers to your Tek-Tips questions? Have a look at FAQ219-2884 or FAQ181-2886

 

[bcdixit]

if [ -s $IN_DIR_Frd/fb.d.v6.fbp.${DT}[012][0-9][0-5][0-9].gz ]
is not working.
it thinks that '[012][0-9][0-5][0-9]' is part of the file name

 

[PHV]

is not working
What happens ? error message ? unexpected behaviour ? computer crash ?
Are you sure IN_DIR_Frd is properly populated ?

Hope This Helps, PH.
Want to get great answers to your Tek-Tips questions? Have a look at FAQ219-2884 or FAQ181-2886

 

[bcdixit]

no crashes ..

yes the file in the directory exists.

the 'if' conditions still thinks [012][0-9][0-5][0-9] is part of the file name hence the condition fails and goes to the 'else' part of the code.

 

[PHV]

Works for me (with DT=20060613)

 

[Ogzilal]

Hi,

Use only wild char star(*) protected by a backslash

if [ -s $IN_DIR_Frd/fb.d.v6.fbp.${DT}\*.gz ]
then
...

 

[dstxaix]

What version and name of the shell is it and what OS?

 

[columb]

The problem with conditionals with wild cards are that they may fail if there is more than one match. i.e. if the directory has files fb.d.v6.fbp.070411.gz and fb.d.v6.fbp.070412.gz (today and yesterday) then the code

if [ -s $IN_DIR_Frd/fb.d.v6.fbp.${DT}[012][0-9][0-5][0-9].gz ]

expands to

[ -s fb.d.v6.fbp.070411.gz fb.d.v6.fbp.070412.gz ]

which is invalid

There are a number of options. If you insist on the -s flag then

for i in $IN_DIR_Frd/fb.d.v6.fbp.${DT}[012][0-9][0-5][0-9].gz 
do
  [[ -s $i ]] && do whatever
done

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Columb Healy