User:Tom/RHCE EX300

RHCSA & RHCE Red Hat Enterprise Linux 7: Training and Exam Preparation Guide (EX200 and EX300) third edition march 205 by Asghar Ghori

RHCE

Hoofdstuk 14 Writing Shell Scripts

nl       Number lines of files
bash -x  Debug script

Command line arguments $0 $1, $#, $*, $$.
shift    Move arguments

echo -e  Enables interprestation of backslash escapes

$?       Exit code

test     Test conditions (man test) int1 -eq int2
if condition then action else action fi
if condition then action elif condition then action else action fi

for-do done
while do done
until do done