| -a | 
 show command line arguments
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 | -A | 
 use ASCII line drawing characters
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 | -c | 
 don't compact identical subtrees
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 | -C TYPE | 
 color process by attribute
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 | -g | 
 show process group ids; implies -c
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 | -G | 
 use VT100 line drawing characters
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 | -h | 
 highlight current process and its ancestors
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 | -H PID | 
 highlight this process and its ancestors
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 | -l | 
 don't truncate long lines
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 | -n | 
 sort output by PID
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 | -N TYPE | 
 sort output by this namespace type 
 (cgroup, ipc, mnt, net, pid, time, user, uts)
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 | -p | 
 show PIDs; implies -c
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 | -s | 
 show parents of the selected process
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 | -S | 
 show namespace transitions
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 | -t | 
 show full thread names
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 | -T | 
 hide threads, show only processes
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 | -u | 
 show uid transitions
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 | -U | 
 use UTF-8 (Unicode) line drawing characters
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 | -V | 
 display version information
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 | -Z | 
 show security attributes
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