Sorting a list in bash 1

Question

i have in test.idx many text and i will all lines with:

# alt: Spanish
# alt: German
# alt: Englisch

my script:

#!/bin/bash
results=$(cat /home/test.idx | grep "# alt:" | awk '{print $3}')
echo "$results"

output is among themselves:

Spanish
German
English

how can output one after the other? :

Spanish German English

Regards

`awk '/^# alt:/{printf "%s%s", (NR==1?"":" "), $3} END{print ""}' file` — Cyrus, Dec 02 '18 at 15:03

score 0 · Accepted Answer · answered Dec 02 '18 at 14:33

0

One way, pipe into paste:

awk '{print $3}' | paste -s -

Another, use printf instead of print:

awk '{printf "%s ", $3} END { print "" }'

answered Dec 02 '18 at 14:33

jas

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huburt achmet, and when i want output seperator ,? to output Spanish, German, English – huburt achmet Dec 02 '18 at 15:34
Awk can handle this without a pipe to paste but that particular awk-only script will add a trailing blank at the end of the line. – Ed Morton Dec 02 '18 at 15:46

score 0 · Answer 2 · answered Dec 02 '18 at 15:48

0

$ awk '/# alt:/{printf "%s%s", (NR>1 ? OFS : ""), $NF} END{print ""}' file
Spanish German Englisch

and in response to your comment under @jas's answer:

$ awk -v OFS=', ' '/# alt:/{printf "%s%s", (NR>1 ? OFS : ""), $NF} END{print ""}' file
Spanish, German, Englisch

This only works for one-word languages, if you have to handle "Ancient Greek" for example then you'd need a slightly different solution, e.g.:

$ cat file
# alt: Spanish
# alt: Ancient Greek
# alt: Englisch
# alt: Upper Sorbian

$ awk -v OFS=', ' 'sub(/^# alt: */,""){printf "%s%s", (NR>1 ? OFS : ""), $0} END{print ""}' file
Spanish, Ancient Greek, Englisch, Upper Sorbian

answered Dec 02 '18 at 15:48

Ed Morton

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hmm, dont work, results=$(cat /home/test.idx | grep "# alt:" | awk -v OFS=', ' '/# alt:/{printf "%s%s", (NR>1 ? OFS : ""), $NF} END{print ""}') result is ", English" and with results=$(cat /home/test.idx | awk -v OFS=', ' '/# alt:/{printf "%s%s", (NR>1 ? OFS : ""), $NF} END{print ""}') is same result ", English" – huburt achmet Dec 02 '18 at 15:55
with comand awk -v OFS=', ' '/# alt:/{printf "%s%s", (NR>1 ? OFS : ""), $NF} END{print ""}' /home/test.idx is output , English – huburt achmet Dec 02 '18 at 15:59
its a problem that another text between is it? wtih only # alt: ... in all lines working this – huburt achmet Dec 02 '18 at 16:06
See https://stackoverflow.com/a/45772568/1745001 for more information on this issue. – Ed Morton Dec 02 '18 at 16:23

Sorting a list in bash 1

2 Answers2