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Unix scripting doubts

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Operating Systems Solaris Unix scripting doubts
# 8  
Old 05-07-2010
An answer to the question in your other post (https://www.unix.com/shell-programmin...#post302419418) that has been closed:

Code:
oprvdw   vrc002093j.ksh
oprvdw   vrc002092j.ksh
oprvrc    vrc045016j.ksh
oprvrc    vrc055141j.ksh
svemietl  bdw0231185.sh
svemietl  bdw0231145.sh

Code:
awk 'a == $1 {print $2; next} {a=$1; print $1 ":" RS $2}' infile
oprvdw:
vrc002093j.ksh
vrc002092j.ksh
oprvrc:
vrc045016j.ksh
vrc055141j.ksh
svemietl:
bdw0231185.sh
bdw0231145.sh

# 9  
Old 05-10-2010
how to check two files exist and theare are not empty
Hi, i hav two files x1.xls and x2.xls. how to write an IF loop to check these two files exist and their size is not empty
# 10  
Old 05-10-2010
Code:
if [ -s x1.xls -a -s x2.xls ]
then
    ....
fi

# 11  
Old 05-10-2010
one more question,
in my script, i wrote a line to create a file like this: ls -lrt vrc* > x.xls
but while executing, it showing o/p as /usr/bin/ls: arg list too long
and not showing required o/p.

soplz suggest me In this case, i want to print a msg to screen and want to come out of the loop
OR
suggest me how can i create that file without showing this error
# 12  
Old 05-10-2010
You can try
Code:
ls -ltr | awk '{ if ($NF ~ /^vrc/) print; }'

# 13  
Old 05-10-2010
in my script, i wrote a line like this : ls -lrt tpa* > x.xls
while executing the script, it showing o/p as tpa*: No such file or directory

instead of server showing this msg, i want my scritpt to display as : No jobs available which starts with tpa*
so how can i change my script
# 14  
Old 05-10-2010
Code:
ls -lrt tpa* > x.xls 2>/dev/null
if [ ! -s x.xls ]
then
    echo No jobs available which starts with tpa*
fi

The redirection of stderr ( 2>/dev/null ) suppresses the error message (no such file or directory). After that you check, if the file is not at least 1 byte of size and print an error message if so.
This User Gave Thanks to hergp For This Post:
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