invoking make from a script
I have a situation where I have to compile a .cc file after changing variables frequently. My script changes the variables in the .cc file
Then i try to compile it first changing into the directory in the shell script by saying cd
and then followed by make. All my shell instructions are saved in a .sh file.
however when i run this i get the error
make: *** No targets specified and no makefile found. Stop.
but when i manually go to the directory and type make it works.
Wh开发者_运维问答y can't the shell script get the make to work?
EDIT I added the script
#! /bin/sh
# simDir=/home/amm/ns-projects/EURANE/Release
simtime=21
high_users=5
low_users=3
rm user_throughput.txt qos_throughput.txt
echo "Iteration,Users, Low, High,Low average,High average, Average cell througput" >> qos_throughput.txt
for(( husers = 1; husers <= $high_users; husers++ )) ### Outer for loop ###
do
for(( lusers = 1 ; lusers <= $low_users; lusers++ )) ### Inner for loop ###
do
total_users=0
let total_users=$husers+$lusers
echo "$total_users $husers $lusers"
#Configure the sh file
num_users=0
cd /home/chanditha/EURANE_multi_cells_itpp/simulation_scripts
printf -v num_users "NUM_USERS=\"%d\"" $total_users
rm hsdpa_ftp_4cells.sh
perl -pe "s/.*/$num_users/ if $. == 5" hsdpa_ftp_4cells_old.sh > hsdpa_ftp_4cells.sh
chmod u+x hsdpa_ftp_4cells.sh
#Configure the awk file
cd /home/chanditha/EURANE_multi_cells_itpp/simulation_scripts/scripts
awkline=0
printf -v awkline "class_cuttoff=max_flow-%d;" $husers
rm tcp_performance_4cells.awk
perl -pe "s/.*/$awkline/ if $. == 137" tcp_performance_4cells_old.awk > tcp_performance_4cells.awk
#Change the directory and go to the .cc file
cd /home/chanditha/ns-allinone-2.30/ns-2.30/umts
printf -v cut_off "int cut_off = flow_max_-%d;" $husers;
rm hsdpalink.cc
perl -pe "s/.*/$cut_off/ if $. == 2109" hsdpalink_old.cc > hsdpalink.cc
#Make it
make clean && make
done
cd /home/chanditha/EURANE_multi_cells_itpp/simulation_scripts
./hsdpa_ftp_4cells_run_all.sh
done
This will probably take a few iterations. Try running this script and tell us what happens:
cd /home/chanditha/ns-allinone-2.30/ns-2.30/umts
make
Also, your whole architecture sounds shaky. You use a script to change variables in the source, then recompile? For heaven's sake, use a parameter file: the script writes it, the executable reads it.
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