Sponsored Content
Full Discussion: Can't understand the script
Top Forums Shell Programming and Scripting Can't understand the script Post 302380520 by durden_tyler on Tuesday 15th of December 2009 11:32:07 AM
Old 12-15-2009
Quote:
Originally Posted by shahdharmit
...
2nd cmd give the following error-
Code:
sort: open failed: +1n: No such file or directory

Seems like the syntax is incorrect in this command:

Code:
$
$ cut -d: -f1,3,7 /etc/passwd |sort -t: +1n
sort: open failed: +1n: No such file or directory
$

As can be seen by the following:

Code:
$
$ sort -t: +1n /etc/passwd
sort: open failed: +1n: No such file or directory
$

If you want to sort the output (numerically) by the 2nd field, which is the 3rd field in the original /etc/passwd file, then -

Code:
cut -d: -f1,3,7 /etc/passwd | sort -t: -k2,2n

tyler_durden
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

help wanted to understand MQ script

hi , i am writing a script to copy the MQ messages from onw queue to another. The following i got from one site, but i di not understand , can anyone explain. /root/scripts/sap/q -m$Q_MANAGER -i$Q_NAME_SRC_1 -F/logs/mq/MQ_COPYdump_$Q_NAME_SRC_1.$$ /root/scripts/sap/q -m$Q_MANAGER... (0 Replies)
Discussion started by: Satyak
0 Replies

2. Shell Programming and Scripting

Help to understand the script

Hi All; Is there anybody can explain this script please? trap 'C_logmsg "F" "CNTL/c OS signal trapped, Script ${G_SCRIPTNAME] terminated"; exit 1' 2 trap 'C_logmsg "F" "Kill Job Event sent from the Console, Script ${G_SCRIPTNAME] terminated"; exit 1' 15 (3 Replies)
Discussion started by: thankbe
3 Replies

3. Shell Programming and Scripting

Need to understand the script pls help

Can u please explain what it is doing #!/bin/sh fullyear=`/home/local/bin/datemmdd 1`"."`date +%Y` uehist=/u05/home/celldba/utility/ue/prod/history echo $fullyear cd $uehist ls -ltr pwroutages.master.$fullyear* | awk '{print $9}' > /u01/home/celldba/tmp/pwroutages_master_all_tmp while... (2 Replies)
Discussion started by: raopatwari
2 Replies

4. Shell Programming and Scripting

Need help to understand ksh script

Hi All, I have a ksh script & would like to understand mening of below lines in script, Starting lines of script is as below, #!/bin/ksh #%W% %I% %D% %T% ---- ??? #%W%G --- ??? num_ctrl_files=0 OS=`uname` if then //g' | egrep -v '(.sh:|.ksh:)' | sed 's/^.*://g' | sed 's/^M//g' |... (6 Replies)
Discussion started by: gr8_usk
6 Replies

5. Shell Programming and Scripting

Understand script formte

Hi i have one script and i am running it but not getting current output so i want to understand how to input in the script. when i do help then i am getting below massage thanks got it (1 Reply)
Discussion started by: asavaliya
1 Replies

6. Shell Programming and Scripting

Help to understand a script

Hello world! Can someone please explain me how this code works? I'ts supposed to find words in a dictionary and show the anagrams of the words. { part = word2key($1) data = $1 } function word2key(word, a, i, x, result) { x = split(word, a, "") asort(a) ... (1 Reply)
Discussion started by: jose2802
1 Replies

7. Shell Programming and Scripting

Can't understand script output

New to korn shel1 and having an issue. The following is suppose to read the parameter values from files in a source directory and then pass them on to a log file in a different directory, The ArchiveTracker scripts is suppose to call the parameterreader script to exact the parameter values and... (3 Replies)
Discussion started by: bayouprophet
3 Replies

8. Shell Programming and Scripting

Need help to understand the below shell script

Please help me to understand the below 3 lines of code.execute shell in jenkins 1)APP_IP=$( docker inspect --format '{{ .NetworkSettings.Networks.'"$DOCKER_NETWORK_NAME"'.IPAddress }}' ${PROJECT_NAME_KEY}"-CI" ) 2)HOST_WORKSPACE=$(echo ${WORKSPACE} | sed... (1 Reply)
Discussion started by: naresh85
1 Replies

9. UNIX for Beginners Questions & Answers

Help me understand this script

#!/bin/awk -f BEGIN {i=1;file="modified.txt"} { if ($0 !~ /^DS:/) {print $0 >> file} else { if ($0 ~ /^DS:/) {print "DS: ",i >> file;if (i==8) {i=1} else {i++}}; } } END {gzip file} Can someone explain to me how this above script works, I got it from a friend but not able... (3 Replies)
Discussion started by: Kamesh G
3 Replies
SORT(1) 						      General Commands Manual							   SORT(1)

NAME
sort - sort a file of ASCII lines SYNOPSIS
sort [-bcdfimnru] [-tc] [-o name] [+pos1] [-pos2] file ... OPTIONS
-b Skip leading blanks when making comparisons -c Check to see if a file is sorted -d Dictionary order: ignore punctuation -f Fold upper case onto lower case -i Ignore nonASCII characters -m Merge presorted files -n Numeric sort order -o Next argument is output file -r Reverse the sort order -t Following character is field separator -u Unique mode (delete duplicate lines) EXAMPLES
sort -nr file # Sort keys numerically, reversed sort +2 -4 file # Sort using fields 2 and 3 as key sort +2 -t: -o out # Field separator is : sort +.3 -.6 # Characters 3 through 5 form the key DESCRIPTION
Sort sorts one or more files. If no files are specified, stdin is sorted. Output is written on standard output, unless -o is specified. The options +pos1 -pos2 use only fields pos1 up to but not including pos2 as the sort key, where a field is a string of characters delim- ited by spaces and tabs, unless a different field delimiter is specified with -t. Both pos1 and pos2 have the form m.n where m tells the number of fields and n tells the number of characters. Either m or n may be omitted. SEE ALSO
comm(1), grep(1), uniq(1). SORT(1)
All times are GMT -4. The time now is 09:14 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy