Optimize shell and awk script
- by bryan
I am using a combination of a shell script, awk script and a find command to perform multiple text replacements in hundreds of files. The files sizes vary between a few hundred bytes and 20 kbytes.
I am looking for a way to speed up this script.
I am using cygwin.
The shell script -
#!/bin/bash
if [ $# = 0 ]; then
echo "Argument expected"
exit 1
fi
while [ $# -ge 1 ]
do
if [ ! -f $1 ]; then
echo "No such file as $1"
exit 1
fi
awk -f ~/scripts/parse.awk $1 > ${1}.$$
if [ $? != 0 ]; then
echo "Something went wrong with the script"
rm ${1}.$$
exit 1
fi
mv ${1}.$$ $1
shift
done
The awk script (simplified) -
#! /usr/bin/awk -f
/HHH.Web/{
if ( index($0,"Email") == 0) {
sub(/HHH.Web/,"HHH.Web.Email");
}
printf("%s\r\n",$0);
next;
}
The command line
find . -type f | xargs ~/scripts/run_parser.sh
