Qshell Interpreter (qsh) - FTP Directory Listing - IBM

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Exit status Examples v 0 when successful. v >0 when unsuccessful. 1. Add the library MYLIB to the library list: liblist -a MYLIB 2. Remove the library MYLIB from the library list: liblist -d MYLIB 3. Set the current library to MYLIB: liblist -c MYLIB 4. Unset the current library: liblist -cd 5. Display the library list: liblist [ Legal | AS/400 Glossary ] sleep - Suspend invocation for an interval Synopsis Description Options Operands Exit status sleeptime You can use sleep to suspend a process from running for time seconds. None. trap - Trap signals Synopsis Description 90 Qshell Interpreter (qsh) The value of time must be a positive integer. v 0 when successful. v >0 when time is invalid. [ Legal | AS/400 Glossary ] trap[ action condition ... ] trap -p[ condition ... ] You can use trap to specify the action for qsh to take when a condition arises. qsh expands action once when running trap and again when condition arises.
Options Operands Exit status Related information Examples When the -p option is specified, qsh displays the current action for the specified condition(s) . When no arguments are specified, qsh displays a list of the currently defined traps. v -p Display each trap in a re-enterable format. For action, you can specify: v Null to ignore condition when it arises v Minus (-) to reset condition to its original value. v A command to be run each time condition arises. For condition, you can specify: v Name or number of a signal. You can use kill -l to display a list of valid signals. For portability, you should always specify the signal name. v 0 or EXIT. qsh runs action when the shell exits. v ERR. qsh runs action when a command has a non-zero exit status. v DEBUG. qsh runs action after each simple command. If more than one condition arises at the same time, qsh runs the traps in this order: 1. DEBUG, if it is specified, then 2. ERR, if it is specified and applicable, then 3. Any other specified traps in signal number order, then 4. EXIT. v 0 when successful. v >0 when an invalid condition is specified. v “kill - Terminate or signal processes” v “wait - Wait for process completion” 1. Set a trap for the ERR condition: trap ′print Command failed’ ERR 2. Ignore the ERR condition: trap ′’ ERR 3. Reset the ERR condition to its original value: trap - ERR 4. Display the current action for the ERR condition: trap -p ERR 5. Display all of the currently defined traps: trap [ Legal | AS/400 Glossary ] Chapter 4. Utilities 91
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Function key Description F7 (Up) Ro
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CCSIDs supported by qsh 00273 00273
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10 Qshell Interpreter (qsh) - The f
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Parameters Positional parameters Sp
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Variables used by qsh 14 Qshell Int
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Word expansions Tilde expansion Par
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$(command) or by using backquotes:
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20 Qshell Interpreter (qsh) Arithme
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Here-documents Using commands [ n ]
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Lists Asynchronous lists Sequential
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then list4 ] ... [ else list5 ] cas
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28 Qshell Interpreter (qsh) [ Legal
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Utilities for defining aliases The
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command - Run a simple command Syno
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Options Operands Exit Status - Invo
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Options Operands Exit status None.
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Operands Exit Status Related inform
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Page 78 and 79: Environment Variables Exit Status R
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Page 98 and 99: For more information about the java
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Page 102 and 103: Description Options Operands Exit s
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Page 110 and 111: Description Options Operands Exit s
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Page 118 and 119: Description Operands Exit Status Ex
Page 120 and 121: true - Return true value Synopsis D
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Page 124 and 125: expr 10 = 10 [ Legal | AS/400 Gloss
Page 126 and 127: Exit Status Examples -t Mark every
Page 128 and 129: Exit Status 112 Qshell Interpreter
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