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Top Forums UNIX for Beginners Questions & Answers Combine two arrays. for in for ?.. Post 303042801 by nezabudka on Tuesday 7th of January 2020 12:38:39 PM
Old 01-07-2020
And I managed to throw out an extra command
Code:
eval echo -en "{$(tr ' ' , <file1)}' '{$(tr ' ' , <file2)}'\n'" |
    while read a b; do
        echo "$a $b"
    done

--- Post updated at 20:12 ---

Just how do I know the length of the string?
getconf LINE_MAX ?

--- Post updated at 20:22 ---

it yields out even with such a set
echo -en {1..30000}' '{a..z}'\n'

--- Post updated at 20:33 ---

Or this expression echo {1..5} does not expand into a string like this echo {1,2,3,4,5}

--- Post updated at 20:43 ---

issued all 30,000 lines
Code:
for((i=1;i<30000; i++)); do echo -n "$i "; done >file1
eval echo -en "{$(tr ' ' , <file1)}' '{a..z}'\n'" | while read a b; do echo "$a.$b."; done

Ok

--- Post updated at 21:38 ---

Code:
for i in $(eval echo {$(tr ' ' , <file1)}_{$(tr ' ' , <file2)}); do
    echo "index ${i%_*} value ${i#*_}"
done


Last edited by nezabudka; 01-07-2020 at 01:03 PM..
 

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sfind(1)							    ShapeTools								  sfind(1)

NAME
sfind - shapeTools RMS recursively descend a system hierarchy SYNOPSIS
sfind [-subs | -comp] directory [command] DESCRIPTION
Sfind recursively descends the system hierarchy of a software system managed by the shapeTools Release Management System (shapeTools RMS). Sfind starts it's search from directory downwards. According to the shapeTools RMS conventions, directory must contain a Shapefile which lists the subsystems in the variable SUBSYSTEMS and the subsystem components in the variable COMPONENTS. Each subsystem is visited. If no command is specified, sfind echoes the pathnames of the subsystems it finds, or, if the option -comp is given, the pathnames of the components of each subsystem. When a command is given, it is executed in the directory of each subsystem. The string ``{}'' in command is replaced by the pathname of the subsystem or component. OPTIONS
-subs command is invoked for each subsystem. This is the default. ``{}'' in command is replaced by the pathname of the subsystem. -comp command is invoked for each component. ``{}'' in command is replaced by the pathname of the component. EXAMPLES
List all system components: sfind -comp ~/development Show the pathnames of all versionfiles: sfind ~/development echo -n {}/ ; shape -echo VERSIONFILE Echo identification of the last release of each subsystem: sfind ~/development vl -last -format '$__lastrelease$\n' `shape -echo VERSIONFILE` Necessary quoting to echo a pair of curly braces: sfind ~/development echo two \{\} braces SEE ALSO
find(1), sh(1), shape(1), shape_RMS(1), shape_tmpl(7) CAVEATS
Quoting of shell meta characters can be tough. BUGS
The program is slow because shape(1) is called at least once for each subsystem. When sfind is interrupted, usually shape(1) displays the message ``shape - interrupted'', which may be confusing. AUTHOR
Andreas.Lampen@cs.tu-berlin.de shape_RMS-1.15 Fri Jun 25 17:01:50 1993 sfind(1)
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