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Shell Programming and Scripting
Parallelize bash commands/jobs
Post 302974533 by yifangt on Tuesday 31st of May 2016 12:39:54 PM
05-31-2016
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i need to execute 5 jobs at a time in background and need to get the exit status of all the jobs i wrote small script below , i'm not sure this is right way to do it.any ideas please help.
$cat run_job.ksh
#!/usr/bin/ksh
####################################
typeset -u SCHEMA_NAME=$1
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Dear all,
I'm a newbie in programming and I would like to know if it is possible to parallelize the script:
for l in {1..1000}
do
cut -f$l quase2 |tr "\n" "," |sed 's/$/\
/g' |sed '/^$/d' >a_$l.t
done
I tried:
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LEARN ABOUT HPUX
link
link(2) System Calls Manual link(2) NAME
link() - link to a file SYNOPSIS
DESCRIPTION
The system call creates a new link (directory entry) for the existing file. path1 points to a path name naming an existing file. path2 points to a path name naming the new directory entry to be created. RETURN VALUE
Upon successful completion, returns zero. Otherwise, it returns -1 and sets (see errno(2)) to indicate the error. ERRORS
The system call fails and no link is created if one or more of the following is true: A component of either path prefix denies search permission. The requested link requires writing in a directory that does not permit writing. The user's or group's disk quota block limit has been reached for this file system. The link named by path2 exists. path points outside the allocated address space of the process. The reliable detection of this error is implementation dependent. Too many symbolic links were encountered in translating either path name. The maximum number of links to a file would be exceeded. Either the specified path exceeds bytes, or a component of either specified path exceeds while is in effect. The file named by path1 does not exist. A component of either path prefix does not exist. path2 points to a null path name. path1 or path2 is null. The directory to contain the file cannot be extended. A component of either path prefix is not a directory. The file named by path1 is a directory and the effective user ID is not a user who has appropriate privileges. Some file systems return this error whenever path1 names a directory, regardless of the user ID. The requested link requires writing in a directory on a read-only file system. The link named by path2 and the file named by path1 are on different logical devices (file systems). SEE ALSO
cp(1), link(1M), symlink(2), unlink(2), symlink(4), privileges(5). STANDARDS CONFORMANCE
link(2)