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Shell Programming and Scripting
Sort a file line by line alphabetically
Post 302165948 by KevinADC on Sunday 10th of February 2008 12:25:20 AM
02-10-2008
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Hi.
I'm trying to sort a list of items in a file alphabetically but starting from the letter 'X'. For instance if I had the following file;
test.txt
Z
A
T
W
Y
B
S
X
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X
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LEARN ABOUT DEBIAN
sm2file
SM2FILE(1) ICI executables SM2FILE(1) NAME
sm2file - shared-memory linked list data extraction test program SYNOPSIS
sm2file DESCRIPTION
sm2file stress-tests shared-memory linked list data extraction by retrieving and deleting all text file lines inserted into a shared-memory linked list that is the root object of a PSM partition named "file2sm". The operation of sm2file echoes the cyclical operation of file2sm: the EOF lines inserted into the linked list by file2sm punctuate the writing of files that are copies of file2sm's original source text file. The name of each file written by sm2file is file_copy_cycleNbr, where cycleNbr is, in effect, the count of EOF lines encountered in the linked list up to the point at which the writing of this file began. sm2file may catch up with the data ingestion activity of file2sm, in which case it blocks (taking the file2sm test semaphore) until the linked list is no longer empty. EXIT STATUS
0 sm2file has terminated. FILES
No configuration files are needed. ENVIRONMENT
No environment variables apply. DIAGNOSTICS
can't attach to shared memory Operating system error. Check errtext, correct problem, and rerun. Can't manage shared memory. PSM error. Check for earlier diagnostics describing the cause of the error; correct problem and rerun. Can't create shared memory list. PSM error. Check for earlier diagnostics describing the cause of the error; correct problem and rerun. Can't create semaphore. ION system error. Check for earlier diagnostics describing the cause of the error; correct problem and rerun. Can't open output file Operating system error. Check errtext, correct problem, and rerun. can't write to output file Operating system error. Check errtext, correct problem, and rerun. BUGS
Report bugs to <ion-bugs@korgano.eecs.ohiou.edu> SEE ALSO
file2sm(1), smlist(3), psm(3) perl v5.14.2 2012-05-25 SM2FILE(1)