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Top Forums UNIX for Dummies Questions & Answers Passing values from file into array in Bash Post 302732883 by Corona688 on Monday 19th of November 2012 10:12:13 AM
Old 11-19-2012
It would be far better to use this as a stream than to jam them all into shell variables. That is very inefficient and won't be portable.
 

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ftjam(1)						      General Commands Manual							  ftjam(1)

NAME
Jam/MR -- Make(1) Redux SYNOPSIS
ftjam [-a] [-g] [-n] [-q] [-v] [-d debug] [-f jambase] [-j jobs] [-o actionsfile] [-s var=value] [-t target] [target ...] DESCRIPTION
Jam is a program construction tool, like make(1). Jam recursively builds target files from source files, using dependency information and updating actions expressed in the Jambase file, which is written in jam's own interpreted language. The default Jambase is compiled into jam and provides a boilerplate for common use, relying on a user-provide file "Jamfile" to enumerate actual targets and sources. OPTIONS
-a Build all targets anyway, even if they are up-to-date. -d n Enable cummulative debugging levels from 1 to n. Interesting values are: 1 Show actions (the default) 2 Show "quiet" actions and display all action text 3 Show dependency analysis, and target/source timestamps/paths 4 Show shell arguments 5 Show rule invocations and variable expansions 6 Show directory/header file/archive scans 7 Show variable settings 8 Show variable fetches 9 Show variable manipulation, scanner tokens -d +n Enable debugging level n. -d 0 Turn off all debugging levels. Only errors are not suppressed. -f jambase Read jambase instead of using the built-in Jambase. Only one -f flag is permitted, but the jambase may explicitly include other files. -g Build targets with the newest sources first, rather than in the order of appearance in the Jambase/Jamfiles. -j n Run up to n shell commands concurrently (UNIX and NT only). The default is 1. -n Don't actually execute the updating actions, but do everything else. This changes the debug level default to -d2. -o file Write the updating actions to the specified file instead of running them (or outputting them, as on the Mac). -q Quit quickly (as if an interrupt was received) as soon as any target build fails. -s var=value Set the variable var to value, overriding both internal variables and variables imported from the environment. -t target Rebuild target and everything that depends on it, even if it is up-to-date. -v Print the version of ftjam and exit. SEE ALSO
ftjam is documented fully in HTML pages available on Debian systems from /usr/share/doc/ftjam/Jam.html. AUTHOR
This manual page was created by Yann Dirson dirson@debian.org from the Jam.html documentation, for the Debian GNU/Linux system (but may be used by others). ftjam(1)
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