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# 8  
Old 01-02-2008
Hi Smiling Dragon,

I am using your code now.

Code:
ls -1 * | awk 'BEGIN { FS="_" } { print $2,$3,$4,$1}' | sort -n | awk 'BEGIN { OFS="_" } { print $4,$1,$2,$3}'

But now i have another problem, some of the filenames come in the form of " zzz_071128_144121_data_interim ", how can i sort it out by modifying your code? Example below

Input:
abc_071128_144121_data
xxx_071128_123524_data
fff_071128_122837_data
jjj_071129_010544_data
qqq_071129_002603_data
hhh_071128_120728_data
bbb_071128_113329_data
zzz_071128_163017_data_interim

Ouput:
bbb_071128_113329_data
hhh_071128_120728_data
fff_071128_122837_data
xxx_071128_123524_data
abc_071128_144121_data
zzz_071128_163017_data_interim
qqq_071129_002603_data
jjj_071129_010544_data
# 9  
Old 01-02-2008
Quote:
Originally Posted by fpmurphy
The following works for the dataset provided:

Code:
sort -t'_' -k2 -k3  datasetfile

Have not tested it on boundary cases.
Why don't you use the above code - its simple, efficient, easy to maintain & isn't affected by other fields.
# 10  
Old 01-02-2008
Hi rikxik,

Tried the code but encounter some errors. Can you give me some advice?

$ sort -t'_' -k2 -k3 *
sort: option requires an argument -- k
sort [-bcdfiMmnru] [-o output] [-T directory] [-ykmem] [-t char]
[+pos1 [-pos2]] [-k field_start[type][,field_end[type]] [file...]

$ ls -l |sort -t'_' -k2 -k3
sort: option requires an argument -- k
sort [-bcdfiMmnru] [-o output] [-T directory] [-ykmem] [-t char]
[+pos1 [-pos2]] [-k field_start[type][,field_end[type]] [file...]
# 11  
Old 01-02-2008
Works fine for me:

Sample:
Code:
$ ls -ltr
total 0
-rw-r-----   1 sdass    informix       0 Jan  2 09:11 xxx_071128_123524_data
-rw-r-----   1 sdass    informix       0 Jan  2 09:11 qqq_071129_002603_data
-rw-r-----   1 sdass    informix       0 Jan  2 09:11 jjj_071129_010544_data
-rw-r-----   1 sdass    informix       0 Jan  2 09:11 hhh_071128_120728_data
-rw-r-----   1 sdass    informix       0 Jan  2 09:11 fff_071128_122837_data
-rw-r-----   1 sdass    informix       0 Jan  2 09:11 bbb_071128_113329_data
-rw-r-----   1 sdass    informix       0 Jan  2 09:11 abc_071128_144121_data

Output:
Code:
$ ls -1 |sort -t'_' -k2 -k3
bbb_071128_113329_data
hhh_071128_120728_data
fff_071128_122837_data
xxx_071128_123524_data
abc_071128_144121_data
qqq_071129_002603_data
jjj_071129_010544_data

Do you know how '|' works or I am getting blind here?
# 12  
Old 01-03-2008
Hi rikxik,

I am using solaris by the way.
This code's not working for me. Smilie
Error message is telling me to input an argument for " k ". Do you have any idea on that ?

$ ls -l
total 0
-rw-r--r-- 1 raynon real 4 Jan 2 17:06 abc_071128_144121_data
-rw-r--r-- 1 raynon real 4 Jan 2 17:06 bbb_071128_113329_data
-rw-r--r-- 1 raynon real 6 Jan 2 17:06 zzz_071128_163017_data_interim

$ ls -1 |sort -t'_' -k2 -k3
sort: option requires an argument -- k
sort [-bcdfiMmnru] [-o output] [-T directory] [-ykmem] [-t char]
[+pos1 [-pos2]] [-k field_start[type][,field_end[type]] [file...]

$ ls -1 |sort -t"_" -k2 -k3
sort: option requires an argument -- k
sort [-bcdfiMmnru] [-o output] [-T directory] [-ykmem] [-t char]
[+pos1 [-pos2]] [-k field_start[type][,field_end[type]] [file...]
# 13  
Old 01-03-2008
And I'm using sunOS - so shouldn't be that different:

Quote:
$ uname -a
SunOS db012a 5.8 Generic_117350-35 sun4us sparc FJSV,GPUZC-M
Try this:

Code:
$ ls -1 |sort -t'_' -k2,2 -k3,3
bbb_071128_113329_data
hhh_071128_120728_data
fff_071128_122837_data
xxx_071128_123524_data
abc_071128_144121_data
qqq_071129_002603_data
jjj_071129_010544_data

This syntax should address your sort's crib.

HTH
# 14  
Old 01-03-2008
Hi rikxik,

It still doesn't work. Can you help ?

$ ls -l
total 0
-rw-r--r-- 1 raynon real 4 Jan 2 17:06 abc_071128_144121_data
-rw-r--r-- 1 raynon real 4 Jan 2 17:06 bbb_071128_113329_data
-rw-r--r-- 1 raynon real 6 Jan 2 17:06 zzz_071128_163017_data_interim

$ ls -1 |sort -t'_' -k2,2 -k3,3
sort: option requires an argument -- k
sort [-bcdfiMmnru] [-o output] [-T directory] [-ykmem] [-t char]
[+pos1 [-pos2]] [-k field_start[type][,field_end[type]] [file...]

$ ls -1 |sort -t"_" -k2,2 -k3,3
sort: option requires an argument -- k
sort [-bcdfiMmnru] [-o output] [-T directory] [-ykmem] [-t char]
[+pos1 [-pos2]] [-k field_start[type][,field_end[type]] [file...]
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