Top Forums Shell Programming and Scripting A cleaner way to rearrange column Post 302986773 by RudiC on Wednesday 30th of November 2016 05:36:15 AM
Yes, awk sees the (not necessarily trailing) 1 as a "pattern" (a logic expression) that always is TRUE, and with an "action" missing it performs the default action which is "print".

NR is an awk internal variable counting input lines starting from 1, so (NR-1) starts from 0, which is equivalent to FALSE. So !(NR-1) is TRUE only for the first input line. The question mark (?) following is part of a "conditional operator" that assigns either of two values depending on a boolean decision.
 
Test Your Knowledge in Computers #20
Difficulty: Medium
India's first Super Computer, the PARAM 8000, was installed in 1991.
True or False?

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

rearrange a file

hi! in awk, i have a file like this: Trace1: WRIT,Trace2: BLAN,Trace3: BLAN, -47.2120018005371,,,39815.4809027778 -46.3009986877441,,,39815.4809027778 -46.277000427246,,,39815.4809143519 -46.7389984130859,,,39815.4809259259 -46.3460006713867,,,39815.4809259259... (10 Replies)
Discussion started by: riderman
10 Replies

2. Shell Programming and Scripting

script to rearrange data.

Hello. I have data in the following format (the spaces at the beginning of lines are included): 1 2 2 0.39621 0.00000 1 2 2 0.00000+-0.0000 * 1 2 ... (5 Replies)
Discussion started by: andersgs
5 Replies

3. Shell Programming and Scripting

rearrange the column names with comma as column delimiter

Hi, I am new to shell scripting, i have requirement can any one help me out in this regrads, in directory i have file like invoice1.txt, invoice2.txt in each file i have fixed number of columns, 62 in number but they are randomly arranged.like for first file invoice1.txt can have columns... (5 Replies)
Discussion started by: madhav62
5 Replies

4. Programming

How to simplify this perl script to a cleaner simpler look?

my $branch_email_e = $FORM{r_Branch}; my $hostbranch_email_e = $FORM{r_Host_Branch}; my $branch_email_f = $FORM{r_Direction_generale}; my $hostbranch_email_f = $FORM{r_Direction_generale_daccueil}; my $branch_realname_e = ''; my $branch_realname_f = ''; ... (4 Replies)
Discussion started by: callyvan
4 Replies

5. Shell Programming and Scripting

Grabbing the newest file, cleaner method?

Greetings, I'm doing a process whereby I need to search for all filenames containing a given bit of text and grab the newest file from what may be 20 results. In a script I'm writing, i've got a monster line to do the sort as follows: find /opt/work/reports/input -name "*$searchtarget*" |... (4 Replies)
Discussion started by: Karunamon
4 Replies

6. Shell Programming and Scripting

Cleaner method for this if-then statement?

I have a script that runs once per month. It performs a certain task ONLY if the month is January, April, July, or October. MONTH=`date +%m` if || || || ; then do something else do a different thing fi Is there a neater way of doing it than my four separate "or" comparisons? That... (2 Replies)
Discussion started by: lupin..the..3rd
2 Replies

7. Shell Programming and Scripting

Cleaner way to use shell variable in awk /X/,/Y/ syntax?

$ cat data Do NOT print me START_MARKER Print Me END_MARKER Do NOT print me $ cat awk.sh start=START_MARKER end=END_MARKER echo; echo Is this ugly syntax the only way? awk '/'"$start"'/,/'"$end"'/ { print }' data echo; echo Is there some modification of this that would work? awk... (2 Replies)
Discussion started by: hanson44
2 Replies

8. Shell Programming and Scripting

Maybe a cleaner way to generate a file?

greetings, to be clear, i have a solution but i'm wondering if anyone has a cleaner way to accomplish the following: the variable: LSB_MCPU_HOSTS='t70c7n120 16 t70c7n121 16 t70c7n122 16 t70c7n123 16 t70c7n124 16 t70c7n125 16 t70c7n126 16 t70c7n127 16 t70c7n128 16 t70c7n129 16 t70c7n130 16... (2 Replies)
Discussion started by: crimso
2 Replies

9. War Stories

Data Centre meets Vacuum Cleaner

Hi Folks, I have just spent a couple of days resolving some problems at the remote DR data centre, sorting out the problems caused by the over zealous use of a Vacuum cleaner of all things. We have a backup server a SUN V480R with a Storedge 3510 and expansion attached which suffered a... (6 Replies)
Discussion started by: gull04
6 Replies
TEXT2PS(L)																TEXT2PS(L)

NAME
text2ps - convert text files to PostScript SYNOPSIS
text2ps [ options ] [ files ] DESCRIPTION
Text2ps reads the input files (standard input if none are specified) and produces PostScript code which, when fed to a PostScript printer, will print the files. With text2ps it is possible to select any font, point size and number of columns. Options and files can be inter- mixed on the command line. Options are effective for all following files until they are overridden. Options Here follows a list of options that text2ps recognizes. Most numeric arguments are significant to one decimal place. Options are evalu- ated from left to right. Later options override earlier ones. -# n Print n copies of each page. (Default 1.) -c n Print in n columns. (Default 1.) -f font Print using font font. (Default Courier.) -p n Print with point size n. (Default 9.) -v n Use a vertical spacing of n points. If the vertical spacing is set to 0, the spacing will be 1.2 times the point size. (Default 0.) -l n Print n lines per column. When the line count is 0, print as many lines as will fit. (Default 0.) -r [p|l] Set the orientation to either portrait mode (p) or landscape mode (l). (Default p.) -b [+|-] Set page break mode. An argument + will force new files to be always printed on a new page (this is the default). After - new files will be put on the same page if there are still empty columns and the number of columns, the orientation or the number of copies didn't change. New files always start new columns. (Default -.) -mt n The top margin is n points. (Default 63.) -mb n The bottom margin is n points. (Default 63.) -ml n The left margin is n points. (Default 59.) -mr n The right margin is n points. (Default 59.) -mg n The inter-column gap is n points. (Default 25.) -t [+|-] If the argument is + the name of the file being printed will be printed on each page. If the argument is - the file name will not be printed. -t + implies -b +. -T text Print text as title on each page. This implies -t - and -b +. This option can be switched off by specifying -t - or -t +. (Default no title.) -F font Set the title font to font. (Default Helvetica.) -P n Set the title point size to n. (Default 12.) -B n Draw borders around each page. The number n specifies how to draw borders. N can have any of the following values or-ed in: 1 Draw a line along the left of the page. 2 Draw a line along the bottom of the page. 4 Draw a line along the right of the page. 8 Draw a line along the top of the page. 16 Draw a line between columns. This line does not connect to the lines along the top or bottom. 32 Draw a connecting line between the line between columns and the line along the top. 64 Draw a connecting line between the line between columns and the line along the bottom. When n is 0, no border lines are drawn. (Default no bordering lines.) -w n Tab stops are set every n spaces. Set the width of the TAB character. (Default 8.) -1 Sets up options to print in one column in portrait mode with the Courier font, so that you get 66 lines on a page. Equivalent to specifying the options -c 1 -f Courier -p 9 -v 0 -r p -l 0 -mt 63 -mb 63 -ml 59 -mr 59. This is the default. -2 Sets up options to print in two columns in landscape mode with the Courier font, so that you get two 66-line columns on a page. Equivalent to specifying the options -c 2 -f Courier -p 6 -v 0 -r l -l 0 -mt 63 -mb 63 -ml 59 -mr 59 -mg 25. Together with the -1 option, this is probably the most useful option. The name - means standard input. BUGS
Too many options. There is no way to specify where the title will be placed. If the font being used is not a constant width font and there are other characters than just tabs and spaces in front of a tab, the next character may not align properly. TEXT2PS(L)

Featured Tech Videos

All times are GMT -4. The time now is 04:16 AM.
Unix & Linux Forums Content Copyright 1993-2020. All Rights Reserved.
Privacy Policy