setpgrp PID,PGRP Sets the current process group for the specified PID, 0 for the current

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quotemeta EXPR quotemeta Returns the value of EXPR with all the ASCII non-"word" characters backslashed

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-X FILEHANDLE -X EXPR -X DIRHANDLE -X A

ARGVOUT The special filehandle that points to the currently open output file when doing edit-in-place processing with -i. Useful when

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