Using awk to print all columns from the nth to the last
While options 4 and 5 are on the right track, they only work if FS is the default value of " "since the regexps are designed to skip leading occurrences of the FS but that would be a bug if the FS was any other single character, e.g. ,, and you can't negate a multi-char FS in a bracket expression (e.g. trying to do "^["FS"]"` when FS="foo") so using FS in the construction of the regexp isn't ...
unix - AWK to print field $2 first, then field $1 - Stack Overflow
2013年3月24日 · awk -F'|' '{split($2,a,".");print a[2]" "$1}' file emailclient [email protected] socialsite [email protected] Finally to get the first character converted to uppercase is a bit of a pain in awk as you don't have a nice built in ucfirst() function:
How to print "\t" in awk - Stack Overflow
2018年4月25日 · awk 'BEGIN{FS="\t"; OFS="\\t"} $1!~/#/{$1=$1; print}' output.vcf. You seem confused about the difference between regexp delimiters and string delimiters. See the awk man page for info on what they are and when to use them. –
awk - concatenate two string variable and assign to a third
2014年11月19日 · awk '{new_var=$1" "$2; print new_var}' file Which in fact is the same as using FS, because it defaults to the space: awk '{new_var=$1 FS $2; print new_var}' file Test $ cat file hello how are you i am fine $ awk '{new_var=$1$2; print new_var}' file hellohow iam $ awk '{new_var=$1 FS $2; print new_var}' file hello how i am
bash - How to print variable inside awk - Stack Overflow
2012年4月1日 · I want the awk to interpret the variable as follows #!/bin/bash file=tau f=2.54 order=even awk '{sum+=$2}; END {print '${file}_${f}_${order}_v1.xls', sum/NR}' ${file ...
How to print matched regex pattern using awk? - Stack Overflow
2011年4月4日 · Using awk, I need to find a word in a file that matches a regex pattern. I only want to print the word matched with the pattern. So if in the line, I have: xxx yyy zzz And pattern: /yyy/ I w...
How to use awk {print} inside an inline ssh command
2020年3月17日 · ssh [email protected] "df / -h | awk 'FNR == 2 {print $3}'" You are passing two arguments: [email protected] "df / -h | awk 'FNR == 2 {print $3}'" Since your second argument is given inside double quotes, the $3 variable will be expanded. You can prevent this variable expansion by escaping the dollar sign:
Trim leading and trailing spaces from a string in awk
2013年12月16日 · Adding another field, e.g. awk '{print $1$2$3}' /tmp/input.txt will catch two sets of spaces (up to three words in column two), and won't break if there are fewer. If you have an indeterminate (large) number of space delimited words, I'd use one of the previous suggestions, otherwise this solution is the easiest you'll find using awk.
bash - Use Awk to extract substring - Stack Overflow
2013年11月23日 · If you want to write an awk script, which portable to any awk implementations and versions (gawk/nawk/mawk...) it is really hard, even if with --posix (gawk) for example: some awk works on string in terms of characters, some with bytes
Awk print string with variables - Stack Overflow
Awk print string with variables. Ask Question Asked 9 years, 3 months ago. Modified 4 years, 3 months ago. ...