Tagged Questions
2
votes
1answer
78 views
What does “${x%% *}” mean in sh? [duplicate]
I just saw "$${x%% *}" in a makefile, which means "${x%% *}" in sh.
Why it is written in this way ?
how can a makefile detect whether a command is available in the local machine?
determine_sum = \
...
1
vote
1answer
73 views
What does mean ` AWK=@AWK@` in shell scripting
I found AWK=@AWK@ while reading sh script, it's something like AWK=$(which awk), but it's not working.
So can anyone explain this ?
Script :
#!/bin/sh -
# makelist.sh: Automatically generate header ...
2
votes
1answer
146 views
shell variable in awk is not being passed to all the lines but just for the very first line of input?
inputfile:is2.txt
10.39.5.41,A1,B1
10.39.5.41,A2,B2
10.39.5.41,A3,B3
10.39.5.41,A4,B4
10.39.5.41,A5,B5
10.39.5.41,A6,B6
script :
#!/bin/bash
second_column="OOOOOOO" # OOOOOOO will be added to ...
