Linux Shell practical programming record

Not comprehensive but practical.

1. xargs -- pass the output of one command to another

1.1
Find./modules/-name *. So | xargs CP-T $ {packdir_so }/

Output find to CP as the Source Parameter

-T specifies the target path of the CP.

2. Date = 'date + % Y % m % d'

E.g. 20130411

3. view the files opened by the process.ProgramAn FD does not know what to close. Importing to select fails. Bad file descriptor

Echo 'ps-A | grep server | cut-C 1-5 '/FD | xargs LS-L | grep PJ

PS-A | grep server | cut-C 1-5 get the process number