Why does the ps command truncate the command line to display only 4096 bytes?
Issue
- Some processes in system have very long command lines. When one tries to list the all parameters of those long parameters processes using
ps auxorps -efcommand, only 4096 bytes of the command line are displayed and the rest is truncated. - Why does /proc/<pid>/cmdline truncate a command line longer than 4K?
Environment
- Red Hat Enterprise Linux 4
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- procps
- kernel
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