python - Piping commands in plink on windows command line -


i using python automate installation of rpms on linux box. m using plink connect linux box. first need info of installed rpms on box. command

os.system('plink root@server -pw pass rpm -qa|grep string > rpm.txt')

here command line interpreters '|' cmd command , throws error "grep not recognized internal or external command, operable program or batch file"

also rpm.txt created on machine instead on linux box.

anyway can use '|' , makesure 'rmp.txt' created in linux box?

try this:

ff=subprocess.popen("plink root@server -pw pass rpm -qa",shell=false,stdin=subprocess.pipe)  ff.communicate("grep string > rpm.txt")

a


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