Add all files

1 files changed, 27 insertions, 0 deletions

diff --git a/extract-data-from-abs-guide/files/string.txt b/extract-data-from-abs-guide/files/string.txt
new file mode 100644
index 0000000..9ba104f
--- /dev/null
+++ b/extract-data-from-abs-guide/files/string.txt
@@ -0,0 +1,27 @@
+   =
+          is equal to
+
+          if [ "$a" = "$b" ]
+
+   ==
+          is equal to
+
+          if [ "$a" == "$b" ]
+
+  !=
+          is not equal to
+
+          if [ "$a" != "$b" ]
+
+   <
+          is less than, in ASCII alphabetical order
+
+          if [[ "$a" < "$b" ]]; if [ "$a" \< "$b" ]
+
+   >
+          is greater than, in ASCII alphabetical order
+
+          if [[ "$a" > "$b" ]]; if [ "$a" \> "$b" ]
+
+   -z
+          string is null, that is, has zero length