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_* grep  : print lines from a file that match the given pattern
_          e.g.  grep path ~/.cshrc
_          e.g.  ls ~/abin | grep -i vol
_          e.g.  from the output of "3dVol2Surf -help" show lines which
_  contain 'surf', but not 'surface', then remove duplicates
_
_3dVol2Surf -help | grep surf | grep -v surface | sort | uniq
_
¥Some Special Files (in the home directory)
_.cshrc  : c-shell startup file ("csh run commands")
Øset aliases
Øadjust the path
Øset shell and environment variables
_.afnirc : AFNI startup file
_.sumarc : suma startup file
_
_.login  : commands run at the start of a login shell (e.g. a terminal window)
_.logout : commands run before exiting a login shell
_.tcshrc : t-shell startup file (if it does not exist, the .cshrc file will be used)